card effect for those who can't read it --------------------------------------------------------- You can also XYZ summon this monster by using a rank 4 or 5 "D/D/D" XYZ monster you control as material (transfer its material to this card) While this card is faceup on your side of the field, other "D/D/D" monsters you control gain 500 atk for each XYZ material this monster has. If this card leaves the field by your opponent's effect, special summon one "D/D/D" XYZ monster from your gy, extra deck, or banishment, then attach this card and as many cards as this card had as material from the bottom of your deck, to the summoned monster. You can only activate the above effect of "D/D/D Tactical King Henry" once per turn. The monster summoned by the above effect gains this effect: -If your opponent activates a card or effect, you can banish one card from your deck facedown; negate that activation, and if you do, attach that card to this card if it was activated on the field.
Konami for Yugioh I used google ai and asked it "would a monster with 4500 defense value and a floating effect that summons a powerful monster if the opponent's effect gets rid of it and gives the summoned monster a non once per turn omni negate at the cost of banishing a card from your deck facedown that also attaches that negated card in yugioh be good" it said the following: -------------------------------------------- Based on the card details, the monster would be exceptionally good—so powerful that it would be banned almost immediately. The combination of a massive 4500 DEF body, a "floating" effect, and a non-once-per-turn omni-negate on the summoned monster creates a card that is nearly impossible to remove and completely shuts down the opponent. Why the card is broken -Massive, unbreakable defense: A monster with 4500 DEF is difficult to destroy by battle. If your opponent manages to remove it with an effect, its "floating" effect then triggers, making removal extremely costly and inefficient. This creates a "win-win" situation for the card's controller, as their monster is replaced with an even more potent threat. -Non-once-per-turn omni-negate: A non-once-per-turn (non-OPT) omni-negate effect is one of the most powerful abilities in Yu-Gi-Oh!. It allows the player to negate multiple of their opponent's monster, spell, or trap card effects on a single turn. With a non-OPT effect, the summoned monster could negate every card the opponent plays, effectively ending their turn. -The cost is not a deterrent: The cost of banishing a card from your deck facedown is negligible for such a powerful effect. It doesn't reduce your hand size or disrupt your main strategy, and it doesn't affect your ability to use the negate multiple times. Many powerful, meta-relevant decks are able to easily play through this kind of minor cost. -The attached card is an added bonus: The additional effect of attaching the negated card further restricts the opponent by potentially preventing them from using graveyard effects. While not the primary feature, it adds an extra layer of powerful disruption. Impact on the game -Creates an anti-meta card: The monster is the very definition of an anti-meta card. It punishes decks that rely on effect removal to handle high-DEF monsters and then punishes every deck with its non-OPT omni-negate. -Shuts down the opponent completely: Upon being summoned, the second monster essentially wins the game on its own. The opponent would have no way to get past the non-OPT omni-negate and the game would be over. -Promotes stagnant, one-sided duels: The card's powerful protection and negation effects would force duels to revolve around it. The opponent would either have to have a very specific out to deal with it, or lose outright, leading to non-interactive and un-fun gameplay. -Creates a massive deck-building problem: Decks that can easily summon the first monster would dominate the meta. Competitors would need to build their decks with specific counters for this card in mind, further narrowing the card pool and reducing diversity.