Spooky20

Add {R}{R}{R}.

Counter target spell unless its controller pays {3}.

{T}: Add {G}.

Prevent all combat damage that would be dealt this turn.

Each opponent sacrifices a land of their choice.

Flying

Enchant creature Enchanted creature gets -2/-1.

Defender (This creature can't attack.) {W}: This creature gets +0/+1 until end of turn.

First strike (This creature deals combat damage before creatures without first strike.)

Other Soldier creatures you control get +1/+0.

Other Soldier creatures you control get +0/+1.

Sacrifice a creature: This creature gets +2/+2 until end of turn.

Return target creature to its owner's hand.

Enchant creature Enchanted creature gets +2/+1.

Attacking creatures get +2/+0 until end of turn.

Target player mills five cards.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.

Flying

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

When this creature enters, it deals 1 damage to any target.

Whenever another creature enters, you gain 1 life.