The minis themselves are Greek-themed, making them great for Jason and the Argonauts moments. But it's the description that makes this worth posting about:
RISING FROM THEIR GRAVES . . .
They are the shades of the men of Sparta, Athens, Thebes, and Macedon. When a Necromancer plunders the coins meant for Charon, she can reanimate their remains and bind them to her will. Only by removing the skull from the body, or destroying the coins, may the warriors break their curse and return to the grave.
Wow. Those are some awesome skeletons. No just whacking these guys with a club and moving on. You've got to decapitate them . . . or destroy the coins the Necromancer used to summon them up.
This is a great way to make skeletons interesting. Get rid of the decapitation thing - it's too easy for PCs to just whack them down and cut off the head and move on. Make it all about the coins. Which, clearly, need not be on or anywhere near the skeletons.
Unkillable 2 (Achilles' Heel: Destruction of personal passage coin) is a good way to represent that. So is Unkillable 3 if you like skeletons that fall to dust which whisks off without a breeze to re-form back at their master's lair.
With that in hand, you have a Necromancer with some seemingly frail and fragile minions, but actually ones which will keep coming back no matter what you do to them, until you break up those coins. Which she presumably needs to keep close by to command them. Or you can defeat the necromancer, and claim the skeleton-coins for yourself. Will you lay the suffering souls to rest or abuse them yourself?