Utopia Mycon

At the beginning of your upkeep, put a spore counter on Utopia Mycon.
Remove three spore counters from Utopia Mycon: Create a 1/1 green Saproling creature token.
Sacrifice a Saproling: Add one mana of any color.

Momentary Blink

Exile target creature you control, then return it to the battlefield under its owner’s control.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Chameleon Blur

Prevent all damage that creatures would deal to players this turn.

Sprout

Create a 1/1 green Saproling creature token.

Mistform Ultimus

Mistform Ultimus is every creature type (even if this card isn’t on the battlefield).

Firewake Sliver

All Sliver creatures have haste.
All Slivers have “, Sacrifice this permanent: Target Sliver creature gets +2/+2 until end of turn.”

Pit Keeper

When Pit Keeper enters, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand.

Wilderness Elemental

Trample
Wilderness Elemental’s power is equal to the number of nonbasic lands your opponents control.

Surging Aether

Ripple 4 (When you cast this spell, you may reveal the top four cards of your library. You may cast spells with the same name as this spell from among those cards without paying their mana costs. Put the rest on the bottom of your library.)
Return target permanent to its owner’s hand.

Gorilla Shaman

: Destroy target noncreature artifact with mana value X.

Cytospawn Shambler

Graft 6 (This creature enters with six +1/+1 counters on it. Whenever another creature enters, you may move a +1/+1 counter from this creature onto it.)
: Target creature with a +1/+1 counter on it gains trample until end of turn.

Vigean Hydropon

Graft 5 (This creature enters with five +1/+1 counters on it. Whenever another creature enters, you may move a +1/+1 counter from this creature onto it.)
Vigean Hydropon can’t attack or block.

Dread Slag

Trample
Dread Slag gets -4/-4 for each card in your hand.

Stalking Vengeance

Haste
Whenever another creature you control dies, it deals damage equal to its power to target player or planeswalker.

Siege of Towers

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Target Mountain becomes a 3/1 creature. It’s still a land.

Petrahydrox

( can be paid with either or .)
When Petrahydrox becomes the target of a spell or ability, return Petrahydrox to its owner’s hand.

Circular Logic

Counter target spell unless its controller pays for each card in your graveyard.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Hinder

Counter target spell. If that spell is countered this way, put that card on your choice of the top or bottom of its owner’s library instead of into that player’s graveyard.

Wild Mongrel

Discard a card: Wild Mongrel gets +1/+1 and becomes the color of your choice until end of turn.