I remember back when Donate was a card that we could use to grief people. I would use Oath of Lim-Dul and donate it to the opponent, maiming them for the rest of the game. While it won't be meta, I will probably try to create a similar dynamic in Grixis with Lich's Mastery
In a more serious deck, I can see this wrecking absolute mayhem in a deck with electrodominance and expansion // explosion, trading minions and planeswalkers with the opponent at instant speed (e.g. they get Teferi to 8 and attack your uncommon planeswalker, but you trade planeswalkers during their attack phase and trigger's their ult at the start of the next turn).
roleinversion
-insert trololol song here-
In a more serious deck, I can see this wrecking absolute mayhem in a deck with electrodominance and expansion // explosion, trading minions and planeswalkers with the opponent at instant speed (e.g. they get Teferi to 8 and attack your uncommon planeswalker, but you trade planeswalkers during their attack phase and trigger's their ult at the start of the next turn).