Blighted Shaman

, Sacrifice a Swamp: Target creature gets +1/+1 until end of turn.
, Sacrifice a creature: Target creature gets +2/+2 until end of turn.

Mindbender Spores

Defender (This creature can’t attack.)
Flying
Whenever Mindbender Spores blocks a creature, put four fungus counters on that creature. The creature gains “This creature doesn’t untap during your untap step if it has a fungus counter on it” and “At the beginning of your upkeep, remove a fungus counter from this creature.”

Kaervek’s Hex

Kaervek’s Hex deals 1 damage to each nonblack creature and an additional 1 damage to each green creature.

Horrible Hordes

Rampage 1 (Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)

Crimson Roc

Flying
Whenever Crimson Roc blocks a creature without flying, Crimson Roc gets +1/+0 and gains first strike until end of turn.

Kukemssa Serpent

Kukemssa Serpent can’t attack unless defending player controls an Island.
, Sacrifice an Island: Target land an opponent controls becomes an Island until end of turn.
When you control no Islands, sacrifice Kukemssa Serpent.

Brushwagg

Whenever Brushwagg blocks or becomes blocked, it gets -2/+2 until end of turn.

Pearl Dragon

Flying
: Pearl Dragon gets +0/+1 until end of turn.

Taniwha

Trample
Phasing (This phases in or out before you untap during each of your untap steps. While it’s phased out, it’s treated as though it doesn’t exist.)
At the beginning of your upkeep, all lands you control phase out. (They phase in before you untap during your next untap step.)

Rock Basilisk

Whenever Rock Basilisk blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

Barreling Attack

Target creature gains trample until end of turn. When that creature becomes blocked this turn, it gets +1/+1 until end of turn for each creature blocking it.