Awesome Cyber Monday

When Eyeblight Assassin enters the battlefield, target creature an opponent controls gets -1/-1 until end of turn.

When Sparring Mummy enters the battlefield, untap target creature.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

When Centaur Healer enters the battlefield, you gain 3 life.

When Pierce Strider enters the battlefield, target opponent loses 3 life.

Whenever Royal Trooper blocks, it gets +2/+2 until end of turn.

At the beginning of combat on your turn, you may pay {3}{W}. If you do, support 2. (Put a +1/+1 counter on each of up to two other target creatures.)

When Dinrova Horror enters the battlefield, return target permanent to its owner's hand, then that player discards a card.

Vigilance When Riptide Crab dies, draw a card.

When Stadium Vendors enters the battlefield, choose a player. That player adds two mana of any one color they choose.

Whenever Borderland Marauder attacks, it gets +2/+0 until end of turn.

When Tenacious Dead dies, you may pay {1}{B}. If you do, return it to the battlefield tapped under its owner's control.

Assist (Another player can pay up to {7} of this spell's cost.) Trample

Assist (Another player can pay up to {5} of this spell's cost.) When Bloodborn Scoundrels enters the battlefield, target opponent loses 2 life and ...

Assist (Another player can pay up to {7} of this spell's cost.) Flying When Lava-Field Overlord enters the battlefield, it deals 4 damage to target...

When Hunted Wumpus enters the battlefield, each other player may put a creature card from their hand onto the battlefield.

Assist (Another player can pay up to {6} of this spell's cost.) When Spellweaver Duo enters the battlefield, you may return target tapped creature ...

Shambling Ghoul enters the battlefield tapped.

Flying When Screeching Buzzard dies, each opponent discards a card.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

When Omenspeaker enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your libr...

At the beginning of combat on your turn, you may have target creature get +2/+0 until end of turn.

Flying, vigilance Whenever Jelenn Sphinx attacks, other attacking creatures get +1/+1 until end of turn.