This is because every single time this card quests, you can give another character the keyword until your next turn
1 Traditional foil, surge foil, or colorful chocobo rare or mythic rare 1 of 3 Traditional foil FINAL FANTASY artist rares (1.9%) or 7 mythic rares (2.2%) 1 of 29 Traditional foil borderless woodblock rares (36.5%) or 6 mythic rares (3.8%) 1 of 26 Traditional foil main set borderless rares (31.6%) or 9 mythic rares (5.6%) 1 of 20 Surge foil borderless character rares (15.1%) or 8 mythic rares (3%) Colorful Traveling Chocobo in yellow, green, blue, pink, or black (less than 1%) Yellow, green, blue, and pink colorful chocobo cards appear in English in all Collector Boosters
While the archetype has a host of mono-black options, the death trigger makes this a nasty threat: Pinging your opponents as zombies die gives you another angle of attack and means Wrath of God might not be enough to salvage a game
It was banned along with Bridge from Below and Faithless Looting across multiple sessions as they tried to curtail one of the most degenerate decks of all time