msem-instigator

Flying, haste
Dominance — At the beginning of combat on your turn, if you control the creature with the greatest power or tied for the greatest power, you may pay {1}{R}. If you do, return Issbarren Phoenix from your graveyard to the battlefield.

Enchant creature
Enchanted creature gets +2/+2 and attacks each combat if able.

When Frostfield Swordsman enters, arm it. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Dominance — When Dragon Queen's Pupil enters, put a +1/+1 counter on it if you control the creature with the greatest power or tied for the greatest power.

Haste
Dominance — {T}: Create a 5/5 red Dragon creature token with flying. Activate only if you control the creature with the greatest power or tied for the greatest power.

Whenever Dissenting Vikings attacks, if you control another Warrior, it gets +1/+0 until end of turn and deals 1 damage to defending player.

Enchant creature
At the beginning of the upkeep of enchanted creature's controller, Betrayer's Mantle deals 3 damage to that player.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.
Fabled {3}{R}{R} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

Destroy target artifact or land.

Dawn Siege deals 4 damage to target creature and 2 damage to each other creature.

Whenever Copse Crusher becomes blocked by one or more creatures, it gets +2/+2 until end of turn for each creature blocking it.

Dominance — At the beginning of combat on your turn, if you control the creature with the greatest power or tied for the greatest power, you may pay {R}. If you do, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Cinder Arrows deals 3 damage to target creature.

Casualty of War deals 4 damage to target creature or planeswalker.
{2}{R}{R}, Exile Casualty of War from your graveyard: Arm up to two target creatures you control. Activate only as a sorcery. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Whenever Byway Bruiser enters or leaves the battlefield, you may have it deal 3 damage to any target.

{T}: Another target Warrior you control gets +1/+0 and gains haste until end of turn.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Deathtouch
Whenever Withered Elk deals combat damage to a player, that player loses half their life, rounded down.

Deathtouch

When Viork Woods Butcher enters, if you control another Warrior, target opponent loses 2 life.

Enchant creature you control
Enchanted creature gets +1/+1.
When enchanted creature dies, return it to the battlefield under your control, then arm it. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Menace
Whenever an opponent discards a card, monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous.)

Enchant creature
When Heartstrings leaves the battlefield, exile enchanted creature.
Whenever enchanted creature attacks or blocks, exile it at end of combat.

Return target creature card from your graveyard to the battlefield.
Fabled {2}{B} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

When Sullen Bonecrusher enters, it deals damage to any target equal to the number of Warriors you control and you gain that much life.