Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
At the beginning of combat on your turn, each creature you control with a counter on it gains firebending 2 until end of turn. (Whenever it attacks, add . This mana lasts until end of combat.)
Iroh is a mono-red counters-matter aggro/midrange commander that wants a wide board of attackers. Mentor seeds +1/+1 counters each combat, and his trigger turns every countered creature into a firebending mana battery during attacks, generating a flood of you can dump into burn, X-spells, or extra activations. You win by attacking relentlessly while converting combat damage into explosive mana.
Generates huge bursts of red mana mid-combat that fuel X-spells, big burn, and reusable activated abilities
Haste plus Mentor means Iroh starts building your board the turn he lands
Synergizes with go-wide tokens and any counters-matter package for snowballing power
Self-sufficient engine that doesn't rely on the rest of your hand to threaten lethal
Mono-red lacks card draw, ramp, and recursion compared to other colors
Heavily reliant on attacking, so Fog effects, mass blockers, and board wipes hit hard
Firebending mana only lasts until end of combat, so you must have payoffs ready or it's wasted
Removal on Iroh shuts off both the Mentor counters and the firebending trigger
Legendary Creature — Human Noble Ally
