
At the beginning of your end step, exile up to one target artifact you control and up to one target creature you control. Then return them to the battlefield under their owners' control.
Don & Leo turns your end step into a free blink engine, exiling and returning one artifact and one creature every turn to retrigger enter-the-battlefield effects, reset counters, and dodge removal. Deploy value ETB creatures and artifacts early, protect Don & Leo so the loop never stops, and snowball card advantage and board presence until you bury opponents in incremental value or assemble a blink-powered combo.
Add cheap, flicker-friendly card-advantage ETBs (Spark Double, Eternal Witness via blink loops) and instant-speed protection like Heroic Intervention's UW analogs to keep the engine alive. Tighten the mana base with fast rocks (Arcane Signet, Talisman of Progress) and fetch-fixing, and add a tutorable combo line such as Felidar Guardian + a blink permanent or an infinite-ETB payoff. Cut high-cost vanilla creatures for low-mana value engines so every blink does meaningful work.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
No combos found for this commander on Commander Spellbook.
Same color identity (UW), by popularity.