When you or an ally hold, you may exhaust me to play a Gold gear token exhausted.
While your score is within 3 points of the Victory Score, your Gold [ADD] an additional 1.

Renata Glasc - Chem-Baroness (Overnumbered)

Spiritforged

When you play a MIGHTY unit, you may exhaust me to channel 1 rune exhausted. (A unit is Mighty while it has 5+ Might.)

Volibear - Relentless Storm (Overnumbered)

Origins

LEGION - When you play me, ready me. (Get the effect if you've played another card this turn) 
 
Other friendly units have +1 might here.

Darius - Executioner (Alternate Art)

[ACTION] (Play on your turn or in showdowns.)
 
[REPEAT 1, Mind] (You may pay the additional cost to repeat this spell's effect.)
 
Deal 1 to up to three units at the same location.

"My work speaks in the roar of flame and the ringing of steel."—Ornn

Bellows Breath

When you play a card from HIDDEN, give me +2 Might this turn.

A flame bright enough to cast many shadows.

Ember Monk

When I attack, deal damage equal to my Might to an enemy unit here.

"Is a leaf's only purpose to fall?"

Yasuo - Remorseful

[EQUIP 1 Body] (1 Body: Attach this to a unit you control.)
 When I conquer, channel 1 rune exhausted. Might +2.

Boneshiver

Your Sand Soldiers have [WEAPONMASTER].
 
1, Exhaust: Play a 2 Might Sand Soldier unit token to your base. Use only if you've played an Equipment this turn.

Azir - Emperor of the Sands

Exhaust: REACTION - ADD 1 Fury. (Abilities that add resources can't be reacted to.)

Seal of Rage

Deal 5 to a unit. 
When you conquer, you may discard 1 to return this from your trash to your hand.

Super Mega Death Rocket!

When you discard one or more cards, ready me and give me +1 Might this turn.

"Rules are made to be broken. Like buildings! Or people!"

Jinx - Rebel

At start of your Beginning Phase, draw 1 if you have 1 or fewer cards in your hand.

Jinx - Loose Cannon

SHIELD (+1 Might while I'm a defender.) 
 
Exhaust: Buff me. (I get a +1 Might buff.) 
 
I can have any number of buffs.

"Let us see whose spirit is stronger."

Lee Sin - Ascetic (Alternate Art)

[REACTION] (Play any time, even before spells and abilities resolve.)
 Choose a friendly unit and a spell. Counter that spell and give that unit + Might equal to that spell's Energy cost this turn.

Riposte

While I'm MIGHTY, I have DEFLECT, GANKING and SHIELD. (I'm Mighty while I have 5+ Might.)

Fiora - Victorious

Buff a friendly unit in your base, then move it to a battlefield. (If it doesn't have a buff, it gets a +1 Might buff.)

Showstopper

1, Exhaust: Attach a detached Equipment you control to a unit you control.
 Exhaust: Attach an attached Equipment you control to a unit you control.

Jax - Grandmaster At Arms (Overnumbered)

2, Exhaust: Move a friendly unit to or from your base.

Yasuo - Unforgiven (Overnumbered)

Look at the top 5 cards of you Main Deck. You may play a unit from among them. Its Energy cost is reduced by 5. Then recycle the remaining cards.

Reinforce

When you stun an enemy unit, ready me and give me +1 Might this turn.

An omen as terrifying as that which follows.

Eclipse Herald

Playful Phantom

REACTION (Play any time, even before spells and abilities resolve.) 
Counter a spell.

Wind Wall

When I conquer, you may kill a gear. If you do, buff me. (If I don't have a buff, I get a +1 Might buff.)

Adaptatron

When you play me, if you control a Poro, buff me and draw 1. (If I don't have a buff, I get a +1 Might buff.)