op 13 one piece booster box TCG and Sabo return as new Leader cards in OP ONE PIECE TCG: OP-13 Japanese

First off, consider that by starting to proxy, youre essentially making the first move in an arms race. Now, its not that arms races dont exist outside of proxying

Creature - Cat Color tag templates(None) Fleecemane Lion : Monstrosity 1

Securely store your favor card in the included top loader

Its a staple of MTG and has been used in almost every set since Alpha (the first-ever Magic: The Gathering card printing)

Sure, you need a board state for this to do its thing, and you have to be a little cautious about when you use it, but it seems like this can bust a game wide open early, and break through a stalled board late, and that seems like a pretty nice overall