Beyond this role, this Luffy card often features abilities that directly impact the board or hand, allowing for strategic disruption and resource management
Being an artifact that will remain in a graveyard you can Tinker it, Reanimate it or Welder it into play
Mono Red Aggro Fight Fire With Fire Of all the decks that can beat Vivi, good old Mono Red Aggro is Cauldron's worst match-up by a pretty significant margin
Toss in a few creatures like Writhing Necromass and Huskburster Swarm that you can cast for substantially less than their mana value, and you have the start to an interesting deck
Honorable Mention #3 - Armored Ascension and Claws of Valakut Coming in at 3,804 and 1,376, respectively
If it is killed in combat, it guarantees that the opponent will be taking at least 3 damage anyway and almost assuredly trades with the creature