Knowledge Pool

Imprint — When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library.
Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost.

Galestrike

Return target tapped creature to its owner’s hand.
Draw a card.

Mark of Mutiny

Gain control of target creature until end of turn. Put a +1/+1 counter on it and untap it. That creature gains haste until end of turn. (It can attack and this turn.)

Wall of Frost

Defender
Whenever Wall of Frost blocks a creature, that creature doesn’t untap during its controller’s next untap step.

Drana, Kalastria Bloodchief

Flying
: Target creature gets -0/-X until end of turn and Drana, Kalastria Bloodchief gets +X/+0 until end of turn.

Maximize Altitude

Target creature gets +1/+1 and gains flying until end of turn.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Quakefoot Cyclops

When Quakefoot Cyclops enters, up to two target creatures can’t block this turn.
Cycling (, Discard this card: Draw a card.)
When you cycle Quakefoot Cyclops, target creature can’t block this turn.

Oust

Put target creature into its owner’s library second from the top. Its controller gains 3 life.

Infernal Scarring

Enchant creature
Enchanted creature gets +2/+0 and has “When this creature dies, draw a card.”

Hooting Mandrills

Delve (Each card you exile from your graveyard while casting this spell pays for .)
Trample

Unflinching Courage

Enchant creature
Enchanted creature gets +2/+2 and has trample and lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)

Crush Dissent

Counter target spell unless its controller pays .
Amass Zombies 2. (Put two +1/+1 counters on an Army you control. It’s also a Zombie. If you don’t control an Army, create a 0/0 black Zombie Army creature token first.)

Loch Dragon

Flying
Whenever Loch Dragon enters or attacks, you may discard a card. If you do, draw a card.

Quakefoot Cyclops

When Quakefoot Cyclops enters, up to two target creatures can’t block this turn.
Cycling (, Discard this card: Draw a card.)
When you cycle Quakefoot Cyclops, target creature can’t block this turn.

Birthing Boughs

, : Create a 2/2 colorless Shapeshifter creature token with changeling. (It has every creature type.)

Scuttling Sliver

Sliver creatures you control have “: Untap this creature.”

Bleeding Edge

Up to one target creature gets -2/-2 until end of turn. Amass Zombies 2. (Put two +1/+1 counters on an Army you control. It’s also a Zombie. If you don’t control an Army, create a 0/0 black Zombie Army creature token first.)