Biomancer's Familiar + Doubling Season + Hullbreacher + Kenrith, the Returned King + Training Grounds
Biomancer's Familiar
Creature — Mutant
Doubling Season
Enchantment
Hullbreacher
Creature — Merfolk Pirate
Kenrith, the Returned King
Legendary Creature — Human Noble
Training Grounds
Enchantment
Result
- Infinite colored mana
- Infinite creature tokens
- Infinite lifegain triggers
- Infinite lifegain
- Infinite card draw for any number of players
- Return all creature cards from all graveyards to the battlefield under your control
- Infinite draw triggers for any number of opponents
- Infinite +1/+1 counters on creatures you control
Combo data from Commander Spellbook.