A Moribund card (and its attachments) is considered
to have been killed, discarded, returned
to its owner's hand or deck, or moved to its
owner's shadows area, but only for the purposes
of triggering responses and passive abilities.
This includes responses and passive abilities
triggered by a card being placed in the appropriate
out-of-play area. A Moribund card is, for
all other purposes, still considered in play.
所以是可以发动血债的。