Whenever Aragorn and Arwen enters or attacks, put a +1/+1 counter on each other creature you control. You gain 1 life for each other creature you control.
Flood the board with creatures, then deploy Aragorn and Arwen to anthem your team with permanent +1/+1 counters and a big lifegain swing every combat. Each attack snowballs your board wider and taller while keeping your life total out of reach. You win by going wide with counter-boosted attackers that quickly outgrow any defense.
Vigilance plus an attack trigger means you grow your board AND keep blockers up every turn
Scales explosively with token strategies — more creatures means more counters and more life
Counters are permanent and stack with counter-synergy payoffs
Massive incidental lifegain stabilizes against aggro and burn
GW has the best go-wide and counter support in the format
Six mana and dies to a single removal spell, resetting the engine
Board wipes are devastating since the deck overcommits to the battlefield
Triggers do nothing for the commander itself (the buff is 'each other creature')
No evasion built in — wide boards can be walled by go-tall or flyers
Slow to come online compared to dedicated combo decks
Cheap creature that draws cards and counts toward your creature total for triggers.
Add counter doublers (Doubling Season, Branching Evolution, Hardened Scales) and token producers to make each trigger exponential, plus protection like Heroic Intervention and Teferi's Protection to survive wipes. Tighten the curve with cheap mana dorks and efficient creatures so the commander lands earlier, and include a hard finisher (Craterhoof, Triumph of the Hordes) to close before opponents stabilize. For higher power, lean into a fast mana base and recursion like Eternal Witness to rebuild after removal.