all one piece booster boxes in order TCG: The Azure Sea's Seven Box [OP-14] The booster packs are factory sealed One Piece Card Game Set

Its the backbone of each format, and you cant really play the game without it

Cards further up on this list will help with turning some of those manifested cards face-up without paying for them, but in the meantime, we have Shriekwood Devourer

The Great Aerie Fun: 2 Impact: 2 Chaos: 2 Pumping up your smaller creatures can certainly be useful, but theres enough spot removal, blockers, board wipes, bounce and situations where having a slightly bigger creature just doesnt do much that Im not too keen on this one

No, you cant play both sides of an aftermath card on the same turn

No matter what color the creature is, no matter if its an artifact or not, the creature will die (with or without regenerate)