Domri, Anarch of Bolas

Creatures you control get +1/+0.
+1: Add or . Creature spells you cast this turn can’t be countered.
−2: Target creature you control fights target creature you don’t control.

Tolsimir, Friend to Wolves

When Tolsimir, Friend to Wolves enters the battlefield, create Voja, Friend to Elves, a legendary 3/3 green and white Wolf creature token.
Whenever a Wolf enters the battlefield under your control, you gain 3 life and that creature fights up to one target creature you don’t control.

Domri, Anarch of Bolas

Creatures you control get +1/+0.
+1: Add or . Creature spells you cast this turn can’t be countered.
−2: Target creature you control fights target creature you don’t control.

Tolsimir, Friend to Wolves

When Tolsimir, Friend to Wolves enters the battlefield, create Voja, Friend to Elves, a legendary 3/3 green and white Wolf creature token.
Whenever a Wolf enters the battlefield under your control, you gain 3 life and that creature fights up to one target creature you don’t control.

Pit Fight

Target creature you control fights another target creature. (Each deals damage equal to its power to the other.)

Ravager Wurm

Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.)
When Ravager Wurm enters the battlefield, choose up to one —
• Ravager Wurm fights target creature you don’t control.
• Destroy target land with an activated ability that isn’t a mana ability.

Savage Smash

Target creature you control gets +2/+2 until end of turn. It fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Ravager Wurm

Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.)
When Ravager Wurm enters the battlefield, choose up to one —
• Ravager Wurm fights target creature you don’t control.
• Destroy target land with an activated ability that isn’t a mana ability.

Prey Upon

Target creature you control fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Prey Upon

Target creature you control fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Kraul Harpooner

Reach
Undergrowth — When Kraul Harpooner enters the battlefield, choose up to one target creature with flying you don’t control. Kraul Harpooner gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard, then you may have Kraul Harpooner fight that creature.

Undercity Uprising

Creatures you control gain deathtouch until end of turn. Then target creature you control fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Affectionate Indrik

When Affectionate Indrik enters the battlefield, you may have it fight target creature you don’t control. (Each deals damage equal to its power to the other.)

Blood Feud

Target creature fights another target creature. (Each deals damage equal to its power to the other.)

Territorial Allosaurus

Kicker (You may pay an additional as you cast this spell.)
When Territorial Allosaurus enters the battlefield, if it was kicked, it fights another target creature.

Territorial Allosaurus

Kicker (You may pay an additional as you cast this spell.)
When Territorial Allosaurus enters the battlefield, if it was kicked, it fights another target creature.

Ancient Animus

Put a +1/+1 counter on target creature you control if it’s legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Epic Confrontation

Target creature you control gets +1/+2 until end of turn. It fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Hunt the Weak

Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Golden Guardian // Gold-Forge Garrison

Defender
: Golden Guardian fights another target creature you control. When Golden Guardian dies this turn, return it to the battlefield transformed under your control.

Cherished Hatchling

When Cherished Hatchling dies, you may cast Dinosaur spells this turn as though they had flash, and whenever you cast a Dinosaur spell this turn, it gains “When this creature enters the battlefield, you may have it fight another target creature.”

Really Epic Punch

Target creature you control gets +2/+2 if it’s a host or has augment. Then it fights target creature you don’t control.

Prey Upon

Target creature you control fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Hunt the Weak

Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don’t control. (Each deals damage equal to its power to the other.)

Pounce

Target creature you control fights target creature you don’t control. (Each deals damage equal to its power to the other.)