Pyromancer's Goggles | Fork

Cards

({R} magic symbol) plus enough mana to cast the additional instant or sorcery available.

Cast any instant or sorcery by paying its mana cost.
Holding priority, activate
Pyromancer's Goggles by tapping it, adding ({R} magic symbol) .
Cast
Fork by paying its mana cost, targeting the instant or sorcery cast in step 1.
Pyromancer's Goggles triggers, copying
Fork, with the copy targeting the original
Fork.
Resolve the copy of
Fork, creating a copy of
Fork targeting the original
Fork.
Repeat step 5.