Voidslime

Counter target spell, activated ability, or triggered ability. (Mana abilities can’t be targeted.)

Macabre Waltz

Return up to two target creature cards from your graveyard to your hand, then discard a card.

Ghostway

Exile each creature you control. Return those cards to the battlefield under their owner’s control at the beginning of the next end step.

Izzet Guildmage

( can be paid with either or .)
: Copy target instant spell you control with mana value 2 or less. You may choose new targets for the copy.
: Copy target sorcery spell you control with mana value 2 or less. You may choose new targets for the copy.

Tibor and Lumia

Whenever you cast a blue spell, target creature gains flying until end of turn.
Whenever you cast a red spell, Tibor and Lumia deals 1 damage to each creature without flying.

Dune-Brood Nephilim

Whenever Dune-Brood Nephilim deals combat damage to a player, create a 1/1 colorless Sand creature token for each land you control.

Wildsize

Target creature gets +2/+2 and gains trample until end of turn.
Draw a card.

Dimir Doppelganger

: Exile target creature card from a graveyard. Dimir Doppelganger becomes a copy of that card, except it has this ability.

Phytohydra

If damage would be dealt to Phytohydra, put that many +1/+1 counters on it instead.

Ursapine

: Target creature gets +1/+1 until end of turn.

Cerulean Sphinx

Flying
: Cerulean Sphinx’s owner shuffles it into their library.

Induce Paranoia

Counter target spell. If was spent to cast this spell, that spell’s controller mills X cards, where X is the spell’s mana value.

Ursapine

: Target creature gets +1/+1 until end of turn.

Sleight of Hand

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Giant Growth

Target creature gets +3/+3 until end of turn.

Giant Growth

Target creature gets +3/+3 until end of turn.

Sleight of Hand

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Maga, Traitor to Mortals

Maga, Traitor to Mortals enters with X +1/+1 counters on it.
When Maga enters, target player loses life equal to the number of +1/+1 counters on it.

Ogre Recluse

Whenever a player casts a spell, tap Ogre Recluse.

Kodama of the Center Tree

Kodama of the Center Tree’s power and toughness are each equal to the number of Spirits you control.
Kodama of the Center Tree has soulshift X, where X is the number of Spirits you control. (When this creature dies, you may return target Spirit card with mana value X or less from your graveyard to your hand.)

Reciprocate

Exile target creature that dealt damage to you this turn.