Unfortunately, even with tons of support pieces ready to go, a single copy of Rest in Peace resolving will instantly cause you to lose the game
Tabletop gaming, particularly trading card games like Magic: The Gathering, has a long history of doing things that are off-putting - whether deliberately or not - to people with minority gender and/or sexual identities, who might otherwise enjoy the hobby
His ultimate ability gives an opponent a 2 damage on anyone's draw emblem
With enough resources, we can use the buff multiple times so it can act as a great finisher
Karador's color identity (Abzan) gives you access to white's tutors and great removal alongside black's graveyard tools
As-is there's nothing here that makes wine particularly well, so it's probably fine, though iffy