Skittish Kavu

Skittish Kavu gets +1/+1 as long as no opponent controls a white or blue creature.

Dueling Grounds

No more than one creature can attack each combat.
No more than one creature can block each combat.

Aura Mutation

Destroy target enchantment. Create X 1/1 green Saproling creature tokens, where X is that enchantment’s mana value.

Raging Goblin

Haste (This creature can attack and as soon as it comes under your control.)

Coercion

Target opponent reveals their hand. You choose a card from it. That player discards that card.

Endbringer’s Revel

: Return target creature card from a graveyard to its owner’s hand. Any player may activate this ability but only as a sorcery.

Heightened Awareness

As Heightened Awareness enters, discard your hand.
At the beginning of your draw step, draw an additional card.

Massacre

If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost.
All creatures get -2/-2 until end of turn.

Defiant Vanguard

When Defiant Vanguard blocks, at end of combat, destroy it and all creatures it blocked this turn.
, : Search your library for a Rebel permanent card with mana value 4 or less, put it onto the battlefield, then shuffle.

Moggcatcher

, : Search your library for a Goblin permanent card, put it onto the battlefield, then shuffle.

Pale Moon

Until end of turn, if a player taps a nonbasic land for mana, it produces colorless mana instead of any other type.

Death Pit Offering

When Death Pit Offering enters, sacrifice all creatures you control.
Creatures you control get +2/+2.

Windfall

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Phyrexian Ghoul

Sacrifice a creature: Phyrexian Ghoul gets +2/+2 until end of turn.

Lhurgoyf

Lhurgoyf’s power is equal to the number of creature cards in all graveyards and its toughness is equal to that number plus 1.

Maniacal Rage

Enchant creature
Enchanted creature gets +2/+2 and can’t block.

Pestilence

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Pestilence.
: Pestilence deals 1 damage to each creature and each player.

Sadistic Glee

Enchant creature
Whenever a creature dies, put a +1/+1 counter on enchanted creature.

Ferocity

Enchant creature
Whenever enchanted creature blocks or becomes blocked, you may put a +1/+1 counter on it.

Cavern Crawler

Mountainwalk (This creature can’t be blocked as long as defending player controls a Mountain.)
: Cavern Crawler gets +1/-1 until end of turn.