msem-instigator

Enchant creature
Enchanted creature gets +1/+0 and has menace and “{1}{R}: This creature gets +1/+0 until end of turn.”

When Barbarian Hoarders enters the battlefield, you may attach target Equipment you control to it.

When Barbarian Intimidator enters the battlefield, target creature can't block this turn.
When Barbarian Intimidator enters the battlefield, prevent all combat damage that would be dealt to target creature this turn.

Battalion — Whenever Barbarian Rager and at least two other creatures attack, Barbarian Rager gets +2/+0 until end of turn.

Other Warriors you control have first strike.
Other Barbarians you control get +1/+0.

Battalion — Whenever Barbaric Ambusher and at least two other creatures attack, you may tap target creature.

Until end of turn, target creature gets +1/+1 for each Equipment attached to it and gains flying and first strike.

Defender
Discard a card: Barge Engulfer can attack as though it didn't have defender until end of turn.

First strike (This creature deals combat damage before creatures without first strike.)
Other Soldier creatures you control get +1/+1 and have first strike.
{3}{W}: Create a 1/1 white Soldier creature token.

When Batrest's Forgemaster enters the battlefield, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle.
Whenever Batrest's Forgemaster attacks, Equipment spells you cast this turn cost {2} less to cast.

Batrest, Fellor Leader gets +1/+1 for each Equipment attached to it.
When Batrest enters the battlefield, create Astrina, Forged for Glory, a legendary colorless Equipment artifact token with “Equipped creature gets +4/+4 and has first strike and lifelink” and equip {4}. Attach it to Batrest.

Attacking creatures get +2/+0 and gain first strike until end of turn.

As Battle for the Shield enters the battlefield, choose Danuri or Fellor.
• Danuri — Soldiers you control get +0/+1 and have vigilance.
• Fellor — Warriors you control get +1/+0 and have first strike.

As Battle the Evil One enters the battlefield, choose Evil One or Rehison.
• Evil One — Zombie creature cards in your graveyard have unearth {3}{B}.
• Rehison — Whenever an Elf enters the battlefield under your control, you may put a -1/-1 counter on target creature.

Whenever Battle-Scarred Combatant attacks or blocks, put a -1/-1 counter on it.

Battalion — Whenever Battleborn Brute and at least two other creatures attack, Battleborn Brute gets +2/+2 until end of turn. Untap it.

Kicker {1}{B} (You may pay an additional {1}{B} as you cast this spell.)
All creatures get -1/-1 until end of turn. If this spell was kicked, creatures your opponents control get an additional -1/-1 until end of turn.

When Battlemage's Disruption enters the battlefield, you may return target creature to its owner's hand.
{3}{U}, Sacrifice Battlemage's Disruption: Return target creature to its owner's hand.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
Enchanted creature gets +2/+2 and has first strike and vigilance.

Each creature you control assigns combat damage equal to its toughness rather than its power.
Identity — Other creatures you control get +0/+1 as long as you control at least two other creatures that share a creature type with Battlewise Strategist.

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

Tap up to two target creatures. They don't untap during their controller's next untap step.
Reprise {3}{U} (As you cast an instant or sorcery spell, you may exile one card with reprise from your graveyard and pay its reprise cost. If you do, add its effects to that spell.)

Whenever Beragnian Brawlmaster or another Warrior enters the battlefield under your control, that Warrior fights target creature an opponent controls.
{R}{W}: Target Warrior creature gets +1/+1 until end of turn.

Armed — Whenever Beragnian Intimidator attacks, if it's equipped, target creature can't block this turn.