Spell Catcher's Potion

Flash
When Spell Catcher's Potion enters exile all spells
When Spell Catcher's Potion leaves the battlefield
each player may cast a spell they own exiled by
Spell Catcher's Potion without paying its mana cost.
Each player who does draws a card
{2}{t}, Sacrifice Spell Catcher's Potion: Surveil 1,
any player may activate this