Other spells I can see appearing as cards include: True Resurrection: An expensive white reanimation effect Cure Wounds : A chance for R&D to try and redeem the Healing Salve card archetype Prismatic Spray : A multi-target removal spell which applies a new effect to each creature hit Wail of the Banshee/Circle of Death: Black creature sweepers Create Undead: Produce an instant army of Zombie and or Skeleton tokens, perhaps by exiling cards from graveyards as fuel Rope Trick: A defensive flicker effect for the whole team Mordenkainens Disjunction: Powerful removal for one or more artifacts or enchantments Bigbys Grasping Hand: Temporary removal along the lines of Heliods Punishment Bulls Strength/Cats Grace/Bears Endurance/Foxs Cunning/Owls Wisdom/Eagles Splendor: A cycle of team-wide keyword-granting buffs, or perhaps Auras

With a built-in rainbow, this card is sure to look absolutely brilliant in person, especially with the texture applied to Special Illustration Rares, making it a perfect fit for this list
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You really need to stuff your deck with Dragons for her to hit correctly, so Ill revisit this ranking down the line
Pay X mana, sacrifice X zombies, and then reveal cards from the top of your library until you reveal X zombies
If you proliferate multiple times, you don't have to choose the same set of players and/or permanents to get additional counters each time