Number C92: Heart-eartH Chaos Dragon [BLAR-EN069] Secret Rare

4 Level 10 monsters
Cannot be destroyed by battle. When a monster you control inflicts battle damage to your opponent: You gain Life Points equal to the damage they took. If this card has "Number 92: Heart-eartH Dragon" as an Xyz Material, it gains this effect.
• Once per turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up cards your opponent currently controls, until the end of this turn. This activation and effect cannot be negated.