Cavalier of Dawn [Core Set 2020] SM247 you may cast target instant

you may cast target instant or sorcery card from that player's graveyard without paying its mana cost

Set: Secret Lair Drop Series Type: Creature — Elemental Rarity: Rare Cost: {1}{G}{U} Whenever Risen Reef or another Elemental enters the battlefield under your control

Additional hooks needed for nerve rigging

Equip {3} ({3}: Attach to target creature you control

Cavalier of Dawn [Core Set 2020] SM247 you may cast target instantSet: Core Set 2020 Type: Creature Elemental Knight Rarity: Mythic Cost: {2}{W}{W}{W} Vigilance When Cavalier of Dawn enters the battlefield, destroy up to one target nonland permanent. Its controller creates a 3 3 colorless Golem artifact creature token. When Cavalier of Dawn dies, return target artifact or enchantment card from your graveyard to your hand.