
Curious Homunculus | Creature | Homunculus | {T}: Add {C}. Spend this mana only to cast an instant or sorcery spell.
At the beginning of your upkeep, if there are three or more instant and/or sorcery cards in your graveyard, transform Curious Homunculus. | Filip Burburan

Fogwalker | Creature | Spirit | Skulk (This creature can't be blocked by creatures with greater power.)
When Fogwalker enters the battlefield, target creature an opponent controls doesn't untap during its controller's next untap step. | Seb McKinnon

Tattered Haunter | Creature | Spirit | Flying
Tattered Haunter can block only creatures with flying. | Nils Hamm

Wharf Infiltrator | Creature | Human Horror | Skulk (This creature can't be blocked by creatures with greater power.)
Whenever Wharf Infiltrator deals combat damage to a player, you may draw a card. If you do, discard a card.
Whenever you discard a creature card, you may pay {2}. If you do, create a 3/2 colorless Eldrazi Horror creature token. | Daarken