one piece card game tin [TS-01] Pack Set Vol.1 (Japanese) encouraging multiple purchases to collect them all GOODS ONE PIECE CARD GAME

I'm sure you can see why

If you can manage to cast it for at least seven mana (x being five) you'll gain five life, make five 1/1 creatures, and wipe the board of all other creatures

If another effect modifies how much damage a source would deal, including preventing some of it, the player being dealt damage or the controller of the permanent being dealt damage chooses an order in which to apply those effects

Both are quite good, especially since Lukka enters with five loyalty counters

Better yet, sacrificing Artifacts like Ichor Wellspring, Servo Schematic, and Prized Statue can trigger their own effects and squeeze out even more value