Bloodflow Connoisseur + Brass's Bounty + Horde of Notions + Lutri, the Spellchaser
Bloodflow Connoisseur
Creature — Vampire
Brass's Bounty
Sorcery
Horde of Notions
Legendary Creature — Elemental
Lutri, the Spellchaser
Legendary Creature — Elemental Otter
Result
- Infinite artifact ETB
- Infinite artifact LTB
- Infinite artifact sacrifice triggers
- Infinite artifact tokens
- Infinite +1/+1 counters on a creature
- Infinite creature ETB
- Infinite creature LTB
- Infinite Treasure tokens
- Infinite colored mana
- Infinite death triggers
- Infinite magecraft triggers
- Infinite recursion of Elemental cards in your graveyard
- Infinite creature sacrifice triggers
- Infinite storm count
Combo data from Commander Spellbook.