Adam, Spell Reclaimer

Companion — Each creature card in your
starting deck is a Human, Merfolk, or Wizard.
{u/r}{u/r}: The next instant or sorcery spell you cast this turn gains storm.

{1}{u/r}{u/r}: Put target instant or sorcery from your graveyard onto the battlefield under your control.
It's a 3/3 creature with "when this creature deals combat damage to a player, you may cast a copy
of this spell without paying its mana cost."