Destroy it, then if you control "Rescue ACE Hydrant", your opponent cannot activate the destroyed monster's effects, also they cannot activate the effects of cards with the same original name.
Pseudo-deck I pulled Grapha and one copy of The Gates of Dark World, so I tried building a Dark World deck too
Every creature in the deck is a giant, and even three of the non-creature spells, Feudkiller's Verdict, Favor of the Mighty, and Crush Underfoot have the giant subtype thanks to their tribal card type
The Emperor of Palamecia looks like one of the fae folk almost, but he transforms into literally The Lord Master of Hell
Gagaga Magician - Gagaga Magic 011 is a Yu-Gi-Oh
If this card is Normal or Special Summoned: You can add 1 Spell/Trap from your GY to your hand, that specifically lists the card "Harpie Lady Sisters" in its text, during the End Phase of this turn