A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way
Being an Amber card, you have a lot of strong characters to choose from to fill this role: Mufasa, Betrayed Leader (how fitting), Hades, King Of Olympus, or Simba, Protective Cub (again, how fitting)
" Alongside landfall cards or cards like The Gitrog Monster, "Sin, Spira's Punishment" will allow you to create a pretty deep mana bank
Frequently Asked Questions How much is Cloud, Midgar Mercenary worth
Blow the Whistle allows him to shut down opponent actions until the start of the player's next turn, potentially neutralizing powerful songs and more