
Haste
Whenever Kilo becomes tapped, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Kilo is a 3-mana hasty engine that proliferates every time it taps, so you want to tap it repeatedly each turn to snowball counters across your board. Build around planeswalkers, +1/+1 counters, charge counters, and energy, then crew Vehicles or use tap-effects to fire proliferate over and over. The deck grinds incremental advantage until your walkers ult, your creatures grow lethal, or an infinite proliferate loop ends the game.
Add reliable untap and tap outlets (Thousand-Year Elixir, Intruder Alarm, Kiora's Follower) plus counter doublers like Doubling Season and Vorinclex to multiply every trigger. Tighten the three-color mana with fast rocks and dual lands so Kilo lands on curve. Finally, install a deterministic combo—infinite proliferate into Walking Ballista or a planeswalker lock—so the engine actually closes games rather than just generating value.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite turns, Lock
→ Infinite proliferate
→ Infinite proliferate
→ Infinite proliferate
→ Infinite proliferate
Combos via Commander Spellbook.
Same color identity (RUW), by popularity.