Cast Crown of Flames on Kykar, Wind's Fury.
Kykar Wind's Fury triggers creating 2 spirits with Anointed Procession.
Sacrifice both spirits adding {R}{R} to your mana pool with Kykar, Wind's Fury.
Return Crown of Flames to your hand with its ability.
Repeat for an arbitrarily large storm count.
Cast Grapeshot instead of Crown of Flames.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite storm count

Near-infinite damage to one opponent

Kykar, Wind's Fury

Anointed Procession

Crown of Flames

Grapeshot

Activate Gilded Lotus by tapping it, adding {3}.
Activate Mirage Mirror twice by paying {4}, targeting Grinning Ignus and Gilded Lotus.
Resolve the first Mirage Mirror ability, causing it to become a copy of Gilded Lotus until end of turn.
Activate Mirage Mirror by tapping it, adding {R}{R}{R}.
Resolve the second Mirage Mirror ability, causing it to become a copy of Grinning Ignus until end of turn.
Activate Mirage Mirror by paying {R} and returning it to your hand, adding {C}{C}{R}.
Cast Mirage Mirror by paying {1}.
Repeat from step 2 until you have a very large storm count.
Cast Grapeshot by paying {1}{R}.
Grapeshot's storm ability triggers, creating a copy of Grapeshot for each spell you've cast this turn.
Resolve all Grapeshots, dealing infinite damage to any target(s).

Infinite damage

Infinite magecraft triggers

Ugin, the Ineffable

Grinning Ignus

Mirage Mirror

Gilded Lotus

Tap Orrery for 5 mana.
Tap 2 mana to activate mirror, targeting grinning ignus.
In response, activate mirror again targeting orrery.
tap mirror for 5 mana before letting it become an ignus.
Use one mana to return mirror to your hand using ignus's ability.
this adds 3 to your mana pool.
8 floating.
cast mirror from your hand, 5 floating.
Repeat.
Cast grapeshot for Infinite damage.

Chromatic Orrery

Mirror Gallery

Combos with "Grapeshot"