Spellbuilder

{u}{u}: Exile an instant or sorcery from your hand attached to target Artificer or Wizard. That creature gains, "{t}, pay the mana cost of the attached spell: Cast a copy of the attached spell without paying its mana cost. Activate this ability only any time you could cast the attached spell."
"...and this one ends the world, and this one ruins a thousand lives, and this one boils soup..."