Battlebond

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

Partner with Toothy, Imaginary Friend (When this creature enters the battlefield, target player may put Toothy into their hand from their library, ...

Assist (Another player can pay up to {3} of this spell's cost.) Counter target spell.

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 Cheering Fanatic attacks, choose a card name. Spells with the chosen name cost {1} less to cast this turn.

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.

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.)

Partner with Sylvia Brightspear (When this creature enters the battlefield, target player may put Sylvia into their hand from their library, then s...

Return target creature to its owner's hand. Its controller draws a card.

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...

{T}: Exile Mangara of Corondor and target permanent.

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