digimon tcg card back Game Starter Deck ST20 | Protector of Light Digimon Card Game Official Sleeves

Added into an Aerodactyl ex deck, though, Marshadow may be the best revenge killer in the game

Thats still solid but far from its peak

There was a thread a few months back for the Pok-Emotions game with a focus on Sleepy linked here which would likely give you a starting point, but I would imagine it is not all inclusive to every card with a sleeping Pokemon

Delina is a powerhouse and is going to let you attack regularly with whichever scary Creature you have out at the time

There are plenty of ways to do both online

But it should be noted that if you use the coin flip effect of Desperado Barrel Dragon, it cannot attack for that turn