
Multikicker
When Zethi, Arcane Blademaster enters, exile up to X target instant cards from your graveyard, where X is the number of times Zethi was kicked. Put a kick counter on each of them.
Whenever Zethi attacks, copy each exiled card you own with a kick counter on it. You may cast the copies.
Cast Zethi with multikicker to exile instants from your graveyard, then attack to copy and cast all of them for free every combat. You spend the early game stockpiling cheap, high-value instants in the yard with cantrips and self-mill, then deploy Zethi with several kicks and start chaining copies each attack step for snowballing card advantage and damage.
Lean into high-impact instants that scale or copy well (Cyclonic Rift, Mystic Confluence, big X-spells) and trim narrow one-shot answers. Add cheap protection and evasion—Lightning Greaves, Swiftfoot Boots, Whispersilk Cloak, Aqueous Form—so Zethi reliably connects, plus cantrips and self-mill to load the yard fast. Top-end the mana with rocks and rituals to land a heavily-kicked Zethi early, and include extra-combat or untap effects to fire multiple attack triggers per turn.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Permanents you control phase out during your opponents' turns, Your life total can't change during your opponents' turns, Lock
→ Infinite turns, Skip your draw steps, Lock
→ Infinite casts of all cards exiled with kick counters on them, Infinite colored mana, Infinite colorless mana
→ Infinite turns, Skip your draw steps, Lock
→ Infinite combat phases, Infinite magecraft triggers, Infinite mana creatures you control can produce
Combos via Commander Spellbook.
Same color identity (UW), by popularity.