Sevinne, the Chronoclasm | Increasing Vengeance

Cards

({3} magic symbol) ({R} magic symbol) ({R} magic symbol) plus enough mana to cast the instant or sorcery from your hand available.

Cast any instant or sorcery spell.
Holding priority, cast
Increasing Vengeance for its flashback cost by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Sevinne triggers, creating a copy of
Increasing Vengeance, targeting
Increasing Vengeance.
Resolve the copy of
Increasing Vengeance, creating a copy of
Increasing Vengeance, targeting
Increasing Vengeance.
Repeat step 4.