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This is why there has been a ban list for the official tournament scene for almost the entire existence of the competitive formats

If a Continuous Spell or Trap copied by this card would have an effect that requires you to activate the card in question (Call of the Haunted, Fiendish Chain, Fire Formation Tenki, etc) then this card doesn't really do anything because it just becomes the effect, and doesn't re-do the activation part of it

The evaluation on a certain site is mixed, but there is no reason why a card that can recover a large amount of LP if used well is weak

That being said, what's actually popping off from the new set