You control at least two untapped creatures, one of which must be green.
Mana Needed
available.
Steps
Activate
Spellbinding Soprano's encore ability by paying and exiling it from your graveyard, creating a token copy of it with haste for each opponent you have.
Declare each
Spellbinding Soprano token as an attacker.
Each
Spellbinding Soprano token triggers, causing instant and sorcery spells you cast this turn to cost less to cast for each
Spellbinding Soprano token.
Cast
Sprout Swarm with buyback by tapping a green creature and any other creature you control, creating a 1/1 Soldier and a 1/1 Saproling creature token and returning
Sprout Swarm to your hand.
Repeat step 4.
Results
Infinite creature ETB.
Infinite magecraft triggers.
Infinite storm count.
Infinite tapped creature tokens.
Infinitely large creature until end of turn.
Metadata
Bracket tag
ExhibitionBracket 1+
For any deck
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.