Green Ward [Alpha Edition]

Green Ward [Alpha Edition]Set: Alpha Edition Type: Enchantment Aura Rarity: Uncommon Cost: {W} Enchant creature Enchanted creature has protection from green. This effect doesn't remove Green Ward.

Morph {4}{G} (You may cast this card face down as a 2/2 creature for {3}

Set: Mystery Booster Type: Instant Rarity: Uncommon Cost: {B} Destroy target creature if it has mana value 2 or less

The Overmind also requires that

If you cast this spell during your main phase

Set: Rivals Quick Start Set Type: Instant Rarity: Common Cost: {1}{B} Destroy target nonartifact

Set: Ixalan Prerelease Promos Type: Creature — Vampire Knight Rarity: Rare Cost: {2}{B}{B} Whenever a Vampire you control attacks

Not so good

Counter target spell unless its controller pays {3}

Set: Strixhaven: School of Mages Prerelease Promos Type: Instant Rarity: Rare Cost: {1}{U}{R} Choose two —

they remove a time counter

Set: Innistrad: Crimson Vow Type: Creature — Human Werewolf Rarity: Uncommon Cost: {2}{R}{G} {2}{R}{G}: Create a 2/2 green Wolf creature token

Ob Nixilis Type: Sorcery Rarity: Common Cost: {B} Each player sacrifices a creature