Thallid Devourer

At the beginning of your upkeep, put a spore counter on Thallid Devourer.
Remove three spore counters from Thallid Devourer: Create a 1/1 green Saproling creature token.
Sacrifice a Saproling: Thallid Devourer gets +1/+2 until end of turn.

Necrite

Whenever Necrite attacks and isn’t blocked, you may sacrifice it. If you do, destroy target creature defending player controls. It can’t be regenerated.

Miracle Worker

: Destroy target Aura attached to a creature you control.

Bog Imp

Flying (This creature can’t be blocked except by creatures with flying or reach.)

Water Wurm

Water Wurm gets +0/+1 as long as an opponent controls an Island.

Goblin Shrine

Enchant land
As long as enchanted land is a basic Mountain, Goblin creatures get +1/+0.
When Goblin Shrine leaves the battlefield, it deals 1 damage to each Goblin creature.

Marsh Viper

Whenever Marsh Viper deals damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

Bog Rats

Bog Rats can’t be blocked by Walls.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.

Terror

Destroy target nonartifact, nonblack creature. It can’t be regenerated.