
Denry Klin enters with your choice of a +1/+1, first strike, or vigilance counter on it.
Whenever a nontoken creature you control enters, if Denry Klin has counters on it, put the same number of each kind of counter on that creature.
Load Denry Klin up with as many counter types as possible, then drip nontoken creatures onto the battlefield so each one is born with a copy of every counter Denry carries. You snowball into a board of oversized, keyword-stacked creatures and beat down, ideally accelerating Denry's counter count with proliferate and counter-doublers before going wide with value creatures.
Add counter-doublers (Doubling Season, Branching Evolution, Vorinclex) and proliferate sources (Evolution Sage, Flux Channeler, Karn's Bastion) to inflate Denry faster, plus keyword-counter enablers to grant evasion. Prioritize protection like Heroic Intervention's UW analogs, Teferi's Protection, and Swiftfoot Boots to keep Denry alive, and run blink effects to retrigger the engine and dodge removal.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite colorless mana, Infinite death triggers, Infinite ETB
→ Infinite colorless mana, Infinite death triggers, Infinite ETB
→ Infinite turns, Lock
→ Infinite card draw, Infinite draw triggers, Near-infinite colorless mana
→ Infinite colorless mana, Infinite death triggers, Infinite ETB
Combos via Commander Spellbook.
Same color identity (UW), by popularity.