Menace, lifelink If a nontoken creature an opponent controls would die, exile it instead. When you do, you may pay {2}. If you do, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."
Flying Ward—Pay 2 life. Whenever an opponent loses life for the first time during each of their turns, put a +1/+1 counter on Valgavoth, Harrower of Souls and draw a card.
Flying, lifelink Ward—Sacrifice three nonland permanents. If a card you didn't control would be put into an opponent's graveyard from anywhere, exile it instead. During your turn, you may play cards exiled with Valgavoth. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.
Flying Whenever Valiant Batrider deals combat damage to a player, that player gets a one-time boon with "When you cast a noncreature spell, you may pay {1}. If you don't, each opponent draws a card."
Rulebreaker — If Valko Indorian, Researcher is your Commander, you may include all artifacts and enchantments in your deck regardless of color identity. Artifacts and enchantments you own everywhere become both types. (This applies to your library, hand, battlefield, and so on.) Whenever you cast an artifact or enchantment spell, put a +1/+1 counter on Valko Indorian.
Menace When Vampire Socialite enters, if an opponent lost life this turn, put a +1/+1 counter on each other Vampire you control. As long as an opponent lost life this turn, each other Vampire you control enters with an additional +1/+1 counter on it.