Give Frilled Deathspitter indestructible by any method.
Deal damage to Frilled Deathspitter by any method.
Frilled Deathspitter triggers, dealing 2 damage to target opponent.
Guilty Conscience triggers, dealing 2 damage to Frilled Deathspitter.
Repeat from step 3.

Infinite damage

Frilled Deathspitter

Guilty Conscience

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

Combos with "Frilled Deathspitter"