Draco Masters of the Tenyi [MP20-EN205] Prismatic Secret Rare

2+ monsters, including a Link Monster
Cannot be destroyed by battle with an Effect Monster. If you control no other Effect Monsters: You can destroy Effect Monsters your opponent controls, up to the number of non-Effect Monsters you control and/or in your GY. You can only use this effect of "Draco Masters of the Tenyi" once per turn.