It features Tag Team GX cards and is best known for Reshiram & Charizard GX, one of the most popular cards of the Sun & Moon era
It requires an Edge Imp and a Fluffal monster for its Fusion Summon, and once per turn, you can target and send 1 monster your opponent controls to the GY, but you cannot attack directly with this card the turn you activate the effect
Shop One Piece TCG at Bad Moon Rising Ready to rip some packs
It's basically an alternative take on the base game (feels mostly the same, but with dozens of different cards).
Hullbreaker Horror You'd think for a Kraken Horror wouldn't be a very strong card, but bouncing permanents and spells is a solid effect
As for standard sized 3x4 ones, 75-100pt thickness would be perfect, but youd have a large portion of the flap unprotected unless you decide to fold it