Mirror Entity and Maskwood Nexus If you don't want to bother with naming specific Creature types, or if there's motivation to grant your Creatures all types, there are a couple Changeling-related options
Creatures with warp stay on the battlefield until the end of the turn, and then you exile rather than sacrifice them
They are often less than ideal with some kind of drawback, like needing to be sacrificed, costing to activate, or entering tapped
We had rules for how the meeple moved between Rooms
Buy the official One Piece Card Game OP-06 Wings of the Captain Japanese booster box display, a major expansion focused on powerful right-hand leaders, rival captains and high-impact support cards
However, being able to Fatal Push your opponents two-drop and then cast Bone Picker on your turn 2 is exceptionally powerful, and I expect Bone Picker to see play in black aggressive decks