
Rule Book: Part 5: Distinguishing between the concepts of "Cost" and "Send by effect"
Have a nice day! The thing is that Tear has been in the game for a while now and everyone has been crazy about this Deck for almost a few weeks now, about how easy it is for Tear to climb Rank, about the unfair situation of Tear. It's about being bored with the game because of Tear :v ...
However, for newbies just playing, the concept of Tear is still quite new, specifically, you want to take advantage of a few cards to activate the effects of Tear (discard 1 card, send the card to the GY). ), but the result turned out to not work :D Why??? Today, we will answer your questions about that issue!
Sections covered in this guide:
Cost

(Photo from source on Yu-Gi-Oh! Master Duel Vietnam group )
*Note : Here I will use the phrase Result to describe the action/effect that will take place and the phrase Condition to describe the action/effect that must be present for another action/effect to occur. .
A cost is an action that must be taken first to activate a card or effect, to perform another action, or to keep a card on the field. This is different from activation conditions , which are requirements that must be met to activate a card or effect.
To put it more simply, Cost will be calculated if in the card, the Condition information is written before the Result information, or the Condition is before the comma , semicolon and colon ,...
If a Cost cannot be fully taken (such as if an active effect prevents the Cost from being taken or the player cannot meet the requirements for that Cost), then no Cost can be taken. is performed and that effect cannot be activated . For example, if Cost states that a card must be sent to the GY while Macro Cosmos is on the field, the effect cannot be activated.
Because Cost is different from Effect, if you use the Cost of a card to send another card to another location, it will not activate the effect of moving to another place with Effect. For example, Shaddoll Dragon 's effect cannot be activated if it is sent to the GY as a Cost to activate Phoenix Wing Wind Blast .
Because Cost is different from Effect, if you use the Cost of a card to send another card to another location, it will not activate the effect of moving to another place with Effect. For example, Shaddoll Dragon 's effect cannot be activated if it is sent to the GY as a Cost to activate Phoenix Wing Wind Blast .
A small note for you: If Cost mentions "You can...", then activating Cost is optional . Therefore, even if the effect is required , if you choose not to pay the Cost , the effect will still not be activated .
Magical Stone Excavation (Example 1)
This is a prime example for Cost. The Condition clause preceded by a comma (semicolon / colon / "then") will occur first, then the Result clause will occur later (this will start Chain 1)
Here, we can see, when activating a card with a Cost, the Cost Condition is required and will not start the Chain => The paid Cost will not be refunded.
Forbidden Droplet and Tearlaments Merrli (Example 2)
Because Cost's rule about an effect of sending cards to another place thanks to Effect (1) is that effect (1) cannot be activated , so we can see this phenomenon.
- Forbidden Droplet active: Remove Merrli down to GY as 1 Cost
- Chain Start : Reduces the ATK of your chosen monsters and their effs will decrease
- The Chain is Resolved and Meril's effect will not be activated
Forbidden Droplet and Kelbek the Ancient Vanguard (Example 3)
But for cards that do not require sending cards to another place thanks to effects but simply moving them to another place, their effects are still activated as a Cost for another card. For example:
- Forbidden Droplet active: Drop Kelbek to GY as a Cost
- Chain Start : Reduces the ATK of your chosen monsters and their effs will decrease
- Chain is Resolved
- Kelbek 's effect is activated when sent to GY and mills 5 cards from each Deck to GY (Start new Chain)
Mirror Force, Solemn Judgment and Seven Tools of the Bandit (Example 4)
Now, we will go to the example of what will happen if the Cost of a card is paid to start an effect and that effect is stopped.
- Mirror Force activated ( Start Chain 1)
- Opp pay 1000 LP ( Does not start Chain 2 ), activate Seven Tools of the Bandit to start Chain 2
- We pay half the LP ( Do not start Chain 3 ), activate Solemn Judgment ( Start Chain 3 )
Result:
- Chain 3 Resolve: Negate Seven Tools of the Bandit and destroy it
- Chain 2 Resolve: Seven Tools of the Bandit's effects do not activate and LP is not refunded
- Chain 1 Resolve: Mirror Force remains active
Mask of Restrict and Cannon Soldier (Example 5)
But if you activate the effect to prevent another Cost paying effect but fail, what will happen?
- Opp sacrifices Cannon Soldier ( Does not start Chain 1 ), Cannon Soldier's effect is activated ( Starts Chain 1 )
- You then activate Mask of Restrict to prevent summoning ( Start Chain 2 )
Result:
- Chain 2 Resolve: Mask of Restrict will stay on the field and both players cannot sacrifice any cards
- Chain 1 Resolve: because the summoned monster was successfully sacrificed right before Mask of Restrict activated, as 1 Cost, Cannon Soldier 's effect is still applied and deals 500 damage to your LP. After that, no player can sacrifice at all.
Lesson learned: You need to time it to prevent Cost effects so you are not at a disadvantage. Since Costs will not usually start a Chain , we cannot prevent Costs if they have already occurred.
Chain Energy (Example 6)
For Continuous Spell/Trap cards that pay Cost, but the player does not have the conditions to pay Cost, the Result effect will not take place .
For example, with Chain Energy , if the player's LP is below 500 , the player will not be able to summon monsters, Sets or activate effects from hand => That means you will be powerless at that time :D
Skill Drain and Stardust Dragon (Example 7)
Thus, based on the concept of Cost not Effect , we can avoid and cheat in some cases. As follows:
- Opp pay 1000 LP ( Do not start Chain 1 ), activate Skill Drain ( Start Chain 1 )
- Chain 1 Resolve: Skill Drain negates the effects of all monsters on the field ( But (1) they can still activate effects)
- Opp activates an effect to destroy Stardust Dragon ( Start Chain 1 )
- You sacrifice Stardust Dragon as a Cost ( Does not start Chain 2 ), and Stardust Dragon's effect activates ( Starts Chain 2 )
Result:
- Chain 2 Resolve: Because Stardust Dragon has moved to GY as a Cost, it will not be affected by Skill Drain and Stardust Dragon's effect will still continue . Negate the destructive effect of opp.
- Chain 1 Resolve: Nothing happens :D
Effect

(Photo from source on Yu-Gi-Oh! Master Duel Vietnam group )
Effect, or what many people often call Card Effect, is a combination of information and abilities of a card (Spell, Trap, monster), including actions that will and need to be performed (Conditions). , Results, Requirements, Costs,...)
Compared to Cost, Effect will be much broader. However, there are small points that we can recognize with the naked eye:
- Effect is the opposite of Cost, and will often come after a comma / semicolon / colon / period / "then" / "to",... Or there are Effects that stand alone.
- Effect when activated will start 1 Chain (You can see above)
- If you move a card to another place to activate that card's effect as an Effect, that card's effect will still be activated.
Because this article will not be able to cover all the Effects of each type of card (You can refer to more related information here ), but newbies are still encountering problems with Tearlaments - the current meta. Today, I will talk more about Effects and their Chain Effects. From there, you can draw some more experiences for yourself!
Shaddoll Beast and Tearlaments Scheiren (Example 2)
As mentioned above, because Effect is not a Cost, sending Shaddoll Beast to the GY to summon Tearlaments Scheiren is an Effect . Because the Effect information is written after a comma , it is not counted as Cost . It will take place specifically as follows:
- Activate Scheiren 's effect ( Start Chain 1 )
- Chain 1 Resolve: Scheiren is special summoned, then sends Shaddoll Beast in hand to the GY as part of the effect , then sends the first 3 cards of the Deck to the GY as part of the effect
As you can see, removing Shaddoll Beast from GY is an effect so:
- Shaddoll Beast 's effect is sent to the GY by the activated effect ( Start Chain 1 )
- Chain 1 Resolve: You draw 1 card
Gravekeeper's Trap and Tearlaments Merrli (Example 3)
As mentioned, the Effect will start a Chain, and the Effect activation will still be negated as usual if it is in a Chain:
- Merrli, when sent to GY thanks to a certain effect, will activate the effect ( Start Chain 1 )
- Opp has Exchange of the Spirit in his GY, he activates Gravekeeper's Trap ( Start Chain 2 )
Result:
- Chain 2 Resolve: Gravekeeper's Trap activates: you cannot activate effects from GY or special summons from GY
- Chain 1 Resolve: Merrli 's effect does not trigger and is ignored.
Lesson learned: Similar to what was said above about Cost, you will need to time it properly to be able to use your Effect smoothly without any problems.
Tearlaments Havnis and Keldo the Sacred Protector (Example 4)
Some friends often wonder: Why is Havnis's Fusion effect not negated but skipped? When watching replays, the situation goes like this:
- Havnis is sent to GY thanks to a certain effect: activating the Fusion effect ( Start Chain 1 )
- Opp himself expels Keldo from the GY as a Cost ( Does not start Chain 2 ), activates the Keldo effect, opp chooses 3 cards from both GY sides, including Havnis who has just started Chain 1 ( Starts Chain 2 )
Result:
- Chain 2 Resolve: Opp returns 3 cards, including Havnis, back to the Deck
- Chain 1 Resolve: Havnis's effect cannot be applied and is skipped
Lesson learned: You need to read the article . Because Havnis's effect involves using itself as material, Havnis's return to the Deck makes its Fusion effect impossible .
The same goes for a few other cards, not just Tears. The opponent can still prevent your effect from happening without negating by Chaining at the right time and hitting the weak point of the condition that your effect imposes.
Abyss Dweller and Time Thief Redoer (Example 5)
For Xyz monsters whose eff is detach material (not detach material and then kick the eff), and if the monster that makes that material has an eff when sent to the grave/... it is completely possible to kick the eff, because this is not cost detach to kic eff for xyz monster.
From the above concept and what I mentioned above, you can roughly understand that if the information of your Xyz card mentions Detach Material before the signs : comma / semicolon / two dots / dot / "then" / "to",..., then it is a Cost and the effects of detached monsters sent to GY will not be activated and vice versa. (For example Abyss Dweller )
However, here, Redoer, in its text, mentions detach first and then uses the effect (sounds exactly like a Cost but in reality it is not. Because the mechanism of this card is that the effect will work based on On detach , that is , both activities will be tied together for the effect to take place , so it is still counted as an effect , not a Cost.
And one more small note: If your opp activates an effect that causes your Xyz monster to leave the field. In particular, if Xyz materials are sent to the GY, effs sent elsewhere ( whether by card effects or not ) of monsters that are used as Xyz materials will not be activated .
This is simply explained by the fact that when these monsters become Xyz materials, they themselves are not considered to exist on this stage , so no matter where they fall, the effect will still not be applied. activated.
Metaverse and Primeval Planet Perlereino (Example 6)
This case belongs to the upcoming banlist when Terraforming will be banned. Many of you will think that using Metaverse will solve this problem, because Metaverse is released 2. That's right, because Primeval is not specified to be activated by effects , it only needs to be activated to activate the effect. its search response. HOWEVER, you will need to pay attention to the word " When " in the text, this is a quite important factor that affects whether this card can be activated or not.
- If you activate Metaverse and activate Primeval to respond to a particular opp Chain , Primeval will not give you the search effect and nothing will happen.
- If you activate Metaverse first or no Chain responds (yes or no, as long as Metaverse activates first), then Primeval will give you the Search effect .
It's a bit tricky and has nothing to do with using effects or not, but it will help if you read this article before banlist ;)
overview
And that is the article that guides you to distinguish between Cost and Effect of YGO Vietnam . Hopefully it can help you in your quest to better understand the game and the magical cards Yu-Gi-Oh!
Below are the sources for this article, you can refer to: Yu-Gi-Oh! Wiki and article Distinguishing between Cost and Effect , Hoiyugioh
https://ygovietnam.com/






































