No, unfortunately that doesn't work. The only things a player can "control" are permanents on the battlefield and spells on the stack. Also, an object can only be a "spell" while it's on the stack. Increasing Vengeance can only target a spell currently on the stack, not a card in any other zone.
September 13, 2017 11:49 a.m.
For comparison, see the wording on Call to Mind.