Deal damage to Sun-Crowned Hunters.
Sun-Crowned Hunters and Blazing Sunsteel trigger.
Resolve the Sun-Crowned Hunters trigger, dealing damage to an opponent.
Resolve the Blazing Sunsteel trigger, dealing damage to Sun-Crowned Hunters.
Repeat from step 2.

Infinite damage

Blazing Sunsteel

Sun-Crowned Hunters

Deal damage to Sun-Crowned Hunters.
Sun-Crowned Hunters and Fiendlash trigger.
Resolve the Sun-Crowned Hunters trigger, dealing damage to an applicable target.
Resolve the Fiendlash trigger, targeting you, but dealing damage to Sun-Crowned Hunters instead due to Pariah.
Repeat from step 2.

Infinite damage to target opponent

Fiendlash

Pariah

Deal damage to Sun-Crowned Hunters.
Sun-Crowned Hunters triggers, dealing 3 damage to an opponent.
Guilty Conscience triggers, dealing damage to Sun-Crowned Hunters.
Repeat from step 2.

Guilty Conscience

Deal damage to Sun-Crowned Hunters.
Sun-Crowned Hunters and Repercussion trigger.
Resolve the Sun-Crowned Hunters trigger, dealing damage to an applicable target.
Resolve the Repercussion trigger, dealing damage to Sun-Crowned Hunters instead of you due to Pariah's Shield.
Repeat from step 2.

Repercussion

Pariah's Shield

Give Sun-Crowned Hunters indestructible by any method.
Deal damage to Sun-Crowned Hunters, with all but 1 of that damage being prevented by Temple Altisaur.
Sun-Crowned Hunters, Ghyrson Starn, and Spark Double trigger.
Resolve the Ghyrson Starn trigger, dealing 2 damage to Sun-Crowned Hunters, with all but 1 of that damage being prevented by Temple Altisaur.
Spark Double and Sun-Crowned Hunters trigger.
Resolve the Sun-Crowned Hunters trigger, dealing 3 damage to target opponent.
Resolve the Spark Double trigger, dealing 2 damage to Sun-Crowned Hunters, with all but 1 of that damage being prevented by Temple Altisaur.
Ghyrson Starn and Sun-Crowned Hunters trigger.
Repeat from step 4.

Ghyrson Starn, Kelermorph

Temple Altisaur

Spark Double

Earthbend a basic land you control.
Cast Legolas's Quick Reflexes by paying {G}, targeting the earthbent land.
Activate Earthcraft by tapping the earthbent land, targeting the earthbent land.
The land triggers, causing it to deal damage equal to its power to Sun-Crowned Hunters.
Sun-Crowned Hunters triggers, dealing that much damage to an applicable target.
Resolve the Earthcraft trigger, untapping the earthbent land.
Repeat from step 3.

Combos with "Sun-Crowned Hunters"