Withering Gaze

Target opponent reveals their hand. You draw a card for each Forest and green card in it.

Deep-Sea Serpent

Deep-Sea Serpent can’t attack unless defending player controls an Island.

Gravedigger

When Gravedigger enters the battlefield, you may return target creature card from your graveyard to your hand.

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can’t be regenerated this turn.

Pox

Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control, then sacrifices a third of the lands they control. Round up each time.

Fungusaur

Whenever Fungusaur is dealt damage, put a +1/+1 counter on it.

Raging Spirit

: Raging Spirit becomes colorless until end of turn.

Warping Wurm

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, Warping Wurm phases out unless you pay .
Whenever Warping Wurm phases in, put a +1/+1 counter on it.

Circle of Despair

, Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Malignant Growth

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your upkeep, put a growth counter on Malignant Growth.
At the beginning of each opponent’s draw step, that player draws an additional card for each growth counter on Malignant Growth, then Malignant Growth deals damage to the player equal to the number of cards they drew this way.