Activate Skyshroud Elf's second ability by paying {0} due to Blossoming Tortoise, adding {W} or {R}.
Repeat.

Infinite red mana

Infinite white mana

Ashaya, Soul of the Wild

Blossoming Tortoise

Skyshroud Elf

Activate Grinning Ignus by paying {R} and returning it to your hand, adding {C}{C}{R}.
Cast Grinning Ignus by paying {R}.
Activate Skyshroud Elf by paying {1}, adding {R}.
Repeat.

Infinite creature ETB

Infinite creature LTB

Infinite storm count

Grinning Ignus

Urza's Incubator

Cast Recruit the Worthy with buyback by paying {3}{W}, creating a 1/1 Soldier creature token and returning Recruit the Worthy to your hand.
When the Soldier enters the battlefield, Mana Echoes triggers, adding {C} for each Soldier you control.
Activate Skyshroud Elf's second ability by paying {1}, adding {W}.
Repeat.

Infinite colorless mana

Infinite creature tokens

Infinite magecraft triggers

Mana Echoes

Recruit the Worthy

Activate Grinning Ignus by paying {R} and returning it to your hand, adding {C}{C}{R}.
Cast Grinning Ignus by paying {1}{R}.
Activate Skyshroud Elf by paying {1}, adding {R}.
Repeat.

Cloud Key

Planar Gate

Cast Kor Skyfisher by paying {1}.
Oketra's Monument and Tangleroot triggers.
Resolve the Oketra's Monument trigger, creating a 1/1 Warrior token.
Resolve the Tangleroot trigger, adding {G}.
Kor Skyfisher enters the battlefield, returning it to your hand.
Activate Skyshroud Elf by paying {G}, adding {W}.
Repeat.

Oketra's Monument

Tangleroot

Kor Skyfisher

Cast Whitemane Lion by paying {1}.
Oketra's Monument and Tangleroot triggers.
Resolve the Oketra's Monument trigger, creating a 1/1 Warrior token.
Resolve the Tangleroot trigger, adding {G}.
Whitemane Lion enters the battlefield, returning it to your hand.
Activate Skyshroud Elf by paying {G}, adding {W}.
Repeat.

Whitemane Lion

Activate Sneak Attack by paying {R}, putting Priest of Gix from your hand onto the battlefield and giving it haste.
When Priest of Gix enters the battlefield, it triggers, adding {B}{B}{B}.
Activate Skyshroud Elf's second ability twice by paying {2}, adding {R}{R}.
Activate Sneak Attack by paying {R}, putting Wizard Mentor from your hand onto the battlefield and giving it haste.
Activate Wizard Mentor by tapping it, returning it and Priest of Gix from the battlefield to your hand.
Repeat.

Combos with "Skyshroud Elf"