However, if you do and the target is illegal as the ability tries to resolve, it won't resolve and none of its effects will happen
After using seven books, the Malboro turns into Ramuh and explains that he accidentally stood on a Morph Trap, which changed him into a Malboro, and he was then unable to change back into his normal form
Toad and the series Gargoyles
Sapphire is an ink type in Lorcana that rewards careful setup with big payoffs, with its more expensive ink costs offering more impressive rewards
There are certainly any number of loops that would have you casting Boneyard Lurker again and again, like in a Karador, Ghost Chieftain deck
Drawing a card and cheating out a spell, after all, is far more powerful than what many of the Swords of X and Y cycles are capable of