Vadrik, Astral Archmage and Kaza, Roil Chaser can make instants and sorceries even cheaper in the right circumstances
(2/2/2024) Unlike a face-down creature that was cast using a disguise or morph ability, a cloaked creature may still be turned face up after it loses its abilities if it's a creature card
Plus, its an actual Zombie for your Zombie decks, so take that, Grave Titan
Daryl's effect can destroy one of the Walker tokens and draw you a card, but that only handles one of the three that it makes
Vampiric Tutor Vampiric Tutor is the best instant-speed tutor and can be cast for only 1 mana, but it has a little downside: You dont put the card directly in your hand
Blightbelly Rat synergizes with your sacrifice outlets and your poison plan