You can maybe swap Agitator Ant with Nils, Discipline Enforcer, since you have control over the counter distribution, and he also punishes the utilization of any counters on your opponents' creatures
All cards in MTG Arena---including Wildcards---have an associated rarity level: Common, Uncommon, Rare, or Mythic
While getting your friends to all gang up on you might not sound like fun to all of you, I can promise that with the right decks and your trusty schemes by your side, playing as the archenemy is an absolute hoot
Harmonize vs
Any enchantment-matters decks will like the price, and youll eventually get a nice raft of cards if you can identify the person likely to lose first like, I dunno, another curse player and slap this on them