My favorite double-faced villain is Ultimecia, Time Sorceress, which has an ability we'd normally never put at uncommon, especially on a creature: an extra-turn effect
It also keeps Hydro-Man safe from sorcery-speed removal and board wipes, though it removes it as a blocker, so theres some trade-off for your forbidden blue ramp
If you want an extra method of protection, use double card sleeves
Lorcana Starter Decks As a Collectable Item As you may already know, starter decks are mainly used to start playing the card game with ease, that makes them an item to rip open and play
2Fate of theSun-Cryst
But more importantly, if your opponent allows you to untap with a Hullbreaker Horror , it'll soon sink their spirit as well as their ships