You have not cast an instant or sorcery spell from anywhere except your hand this turn.
Notable Prerequisites
You have an instant or sorcery card in hand.
Mana Needed
({3} magic symbol) ({R} magic symbol) ({R} magic symbol) plus enough mana to cast the instant or sorcery in your hand available.
Steps
Cast the instant or sorcery spell from your hand by paying its mana cost.
Holding priority, cast
Increasing Vengeance from your graveyard for its flashback cost by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , targeting the instant or sorcery.
Increasing Vengeance's demonstrate ability triggers, causing you and an opponent to copy
Increasing Vengeance, with your copy targeting the original
Increasing Vengeance.
The Twelfth Doctor triggers, putting a +1/+1 counter on it.
Resolve the copy of
Increasing Vengeance, copying
Increasing Vengeance, with the copy targeting the original