Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Whenever this creature deals combat damage to an opponent, it deals that much damage to each other opponent.

Whenever this creature is dealt damage, it deals that much damage to any target.

Enrage — Whenever this creature is dealt damage, it deals 5 damage to target creature an opponent controls.

Haste

Whenever this creature deals damage to an opponent, flip it.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever this creature attacks, it deals 1 damage to target creature an opponent controls.

Enrage — Whenever this creature is dealt damage, it deals 3 damage to target opponent or planeswalker.

Whenever this creature is dealt damage, it deals that much damage to any target.

: This creature gets +2/+0 until end of turn.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

Whenever this creature is dealt damage, it deals that much damage to target player.

When this creature enters, it deals 2 damage to target creature.

Whenever this creature is dealt damage, it deals that much damage to each player.

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)

Whenever Donna Noble or a creature it's paired with is dealt damage, Donna Noble deals that much damage to target opponent.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Backup 2 (When this creature enters the battlefield, put two +1/+1 counters on target creature. If that's another creature, it gains the following abilities until end of turn.)

Haste

Whenever this creature deals combat damage to an opponent, destroy target artifact that player controls.

Trample

Whenever this creature deals 6 or more damage to an opponent, destroy target land that player controls.

Whenever a permanent is turned face up, this creature deals 1 damage to any target.

Trample

When this creature enters, it deals 2 damage to target opponent or planeswalker.

Whenever this creature blocks, prevent all combat damage that would be dealt to and dealt by it this turn.

: This creature deals 1 damage to target creature it's blocking.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

When this creature enters, it deals 1 damage to each creature your opponents control.

Whenever a creature an opponent controls with a counter on it dies, you create a tapped Treasure token.

When this creature dies, it deals 3 damage to any target.