one piece trading cards game OP-12 Legacy of the Master Booster Box depicted in the original work One Piece Trading Card Game:

, Pay 1 life: Add one mana of any color

Tromell, Seymour's Butler Tromell, Seymour's Butlers proliferate X ability is too good to ignore

Youll want a Catalyst Stone to make your flashback costs cheaper, and then youll want Pyromancers Goggles to doubly copy all the red ones, which you might get to cast off the top of your library since youre still using Elsha of the Infinite, plus adding Melek, Izzet Paragon

If opponents combo off and you have no answers, you lose

Legality depends on the tournament format -- Goliath Truck can be legal in some formats and banned or restricted in others

It depends on a variety of factors