, Exile two creature cards from your graveyard: Create a 1/1 black Skeleton creature token. It has "
: Regenerate this creature."
When Drudge Spell leaves the battlefield, destroy all Skeleton tokens. They can't be regenerated.
This destroys all Skeleton tokens from all sources if it leaves the battlefield. It does not just destroy ones generated by this Drudge Spell or just ones you control.