More importantly, it has the ability Second Wind, which reads: Whenever an opposing character is damaged, ready this character. Most ready effects in Lorcana specifically state that a character who is readied cannot quest again for the rest of the turn, but a select few powerful characters can ready and quest multiple times in the same turn
Companion originally let you cast a single creature from your sideboard if you fit a specific condition, but its immense popularity across every format in the game led to decks needing a Companion to participate
Even the decks full of flashback and graveyard where you basically get four things with it are too slow
Meanwhile, black embraces power at any cost, and its known to make demonic pacts, or lose a lot of life to get a strong advantage
In a multiplayer environment, this can easily provide +10/+X to a target creature
His ultimate gives you an emblem that drains opponents whenever you gain life a deceptively simple effect that can spiral into devastating combos
