Case of the Stashed Skeleton - 1B
Enchantment - Case (Rare)
When this Case enters the battlefield, create a 2/1 black Skeleton creature token and suspect it. (It has menace and can’t block.)
To solve - You control no susp ected Skeletons. (If unsolved, solve at the beginning of your end step.)
Solved - 1B, Sacrifice this Case: Search your library for a card, put it into your hand, then shuffle. Activate only as a sorcery.
I was initially stoked for a skeleton tribal card. Then I read the condition, and realized it’s actually kinda worse in a skeleton deck 💀
Overall I think it’s probably still a net gain for skeleton tribal. But maybe as a one-of to avoid the nonbo of multiple copies.
I mean at worst it’s a 2/1 with menace for 2. Your opponent wraths and suddenly you can cast demonic tutor for whatever you need. I think mr. Bones tribal is probably desperate enough that you slam 4 of these.