
This spell costs less to cast for each different mana value among cards in your graveyard.
Whenever you discard a nonland card, you may cast it from your graveyard.
Oskar is a discard-payoff engine: load your graveyard with varied mana values to cheapen him, then turn every discard into a free cast from the yard. You fill the bin with cantrips, wheels, and rummaging effects, then chain cheap-to-recast value spells and bombs you discarded.
Add discard outlets that don't cost mana and graveyard-fuel like Frantic Search, Cathartic Reunion, and Tortured Existence. Lean into a tight reanimator or storm-style combo line with Underworld Breach, and run protection plus graveyard recursion to fight hate. Tune your curve to maximize distinct mana values so Oskar consistently costs near zero.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite ETB, Infinite LTB, Infinite self-discard triggers
→ Infinite black mana, Infinite death triggers, Infinite ETB
→ Infinite ETB, Infinite LTB, Infinite self-discard triggers
→ Infinite ETB, Infinite LTB, Infinite self-discard triggers
→ Infinite colored mana, Infinite damage, Infinite magecraft triggers
Combos via Commander Spellbook.
Same color identity (BU), by popularity.