Cast Firemind's Foresight by paying {5}{U}{R}, searching for Lightning Bolt, Reset, and Reiterate.
Cast Reset by paying {U}{U}.
Holding priority, cast Reiterate with buyback by paying {4}{R}{R}, creating a copy of Reset.
Resolve the Reset copy, untapping all lands you control.
Repeat from step 3.
Once you have infinite mana, you can cast Lightning Bolt by paying {R}, dealing 3 damage to any target.
Holding priority, cast Reiterate with buyback by paying {4}{R}{R}, creating a copy of Lightning Bolt.
Resolve the Lightning Bolt copy, dealing 3 damage to any target.
Repeat from step 7.

Infinite colored mana

Infinite damage

Infinite magecraft triggers

Infinite storm count

Firemind's Foresight

Lightning Bolt

Reset

Reiterate

Activate Tree of Perdition by tapping it, swapping its toughness with an opponent's life total.
Cast Lightning Bolt by paying {R}, dealing 3 damage to the opponent.
Cast Hidetsugu's Second Rite by paying {3}{R}, dealing 10 damage to the opponent.
The opponent loses the game due to having zero life.

Infinite lifeloss for target opponent

Target opponent loses the game

Tree of Perdition

Hidetsugu's Second Rite

Combos with "Lightning Bolt"