Activate any number of creatures by tapping it, adding at least {2}.
Activate Elite Arcanist by paying {2} and tapping it, copying Rally of Wings and casting the copy without paying its mana cost.
Resolve the copy of Rally of Wings, untapping all creatures you control and giving creatures you control with flying +2/+2 until end of turn.
Repeat.

Infinite storm count

Infinite untap of creatures you control

Infinite mana creatures you control can produce

Infinite magecraft triggers

Infinite power and toughness for certain creatures until end of turn

Elite Arcanist

Rally of Wings

Cast Rally of Wings by paying {1}{W}.
Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
Holding priority, activate any number of creatures by tapping them, adding at least {2}.
Activate Kitsa's second ability by paying {2} and tapping it, copying Rally of Wings.
Resolve Rally of Wings, untapping all creatures you control and giving creatures you control with flying +2/+2 until end of turn.
Repeat from step 3.

Kitsa, Otterball Elite

Activate any number of creatures by tapping them, adding at least {2}.
Activate Isochron Scepter by paying {2} and tapping it, casting a copy of Rally of Wings without paying its mana cost.
Resolve Rally of Wings, untapping all creatures you control and giving creatures you control that have flying +2/+2 until end of turn
Activate Vizier of Tumbling Sands by tapping it, untapping Isochron Scepter.
Repeat.

Isochron Scepter

Vizier of Tumbling Sands

Animate Isochron Scepter using Karn.
Activate any number of creatures by tapping them, adding at least {2}.
Activate Isochron Scepter by paying {2} and tapping it, casting a copy of Rally of Wings without paying its mana cost.
Resolve Rally of Wings, untapping all creatures you control and giving creatures you control that have flying +2/+2 until end of turn
Repeat from step 2.

Karn, Silver Golem

Declare Zethi as an attacker, triggering its second ability.
Holding priority, activate all mana producing creatures you control by tapping them, adding at least {4}{W}.
Activate Lithoform Engine's first ability by paying {2} and tapping it, copying Zethi's triggered ability.
Resolve the copy of Zethi's ability, creating a copy of each card exiled with a kick counter of it and causing you to pay {1}{W} to cast the copy of Rally of Wings.
Resolve the Rally of Wings copy, untapping all creatures you control.
Activate Aphetto Alchemist by tapping it, untapping Lithoform Engine.
Repeat from step 2.
Once you have infinite mana, you may use that mana to then cast the copies of all other cards exiled with kick counters on them.

Infinite casts of all cards exiled with kick counters on them

Infinite mana nonland permanents you control can produce

Zethi, Arcane Blademaster

Lithoform Engine

Aphetto Alchemist

Activate any number of creatures you control by tapping them, adding at least {5}{G}.
Activate Isochron Scepter by paying {2} and tapping it, casting a copy of Rally of Wings without paying its mana cost.
Resolve Rally of Wings, untapping all creatures you control.
Activate Elder Druid by paying {3}{G} and tapping it, untapping Isochron Scepter.
Repeat.

Combos with "Rally of Wings"