Mycosynth Golem [Fifth Dawn] Eternal Masters "To whoever left their homunculus

"To whoever left their homunculus experiment unattended: you will not be penalized if you come forward and tell us how to make it stop

Set: Dominaria Remastered Type: Instant Rarity: Mythic Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost

Boast — {1}{B}: Target player searches their library for a card

Set: Streets of New Capenna Type: Artifact Rarity: Mythic Cost: {2}{W} {W}

or locations is returned to their hand from play

Mycosynth Golem [Fifth Dawn] Eternal Masters "To whoever left their homunculusSet: Fifth Dawn Type: Artifact Creature Golem Rarity: Rare Cost: {11} Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Artifact creature spells you cast have affinity for artifacts. (They cost {1} less to cast for each artifact you control.)