1995 unown pokemon card [I] 68/75 Neo Discovery [Observe] Pokemon proxy cards first edition

You can add undying, flying, infect, and more

If the target of Dross Skullbomb's last ability isn't a legal target as the ability tries to resolve (probably because it has left the graveyard), you won't draw a card

They return their cards to the bottom of the deck (not showing them to the other players) and then draw back up to their starting hand of seven

I know I would

Latias ex also removes the retreat cost from any Basic Pokmon in play

Looking at an obvious example from Old School, The Deck, which runs four Jayemdae Tomes, Ancestral Recall, Timetwister, Braingeyser, and a Library of Alexandria, its a powerhouse of card advantage