Sivandra Darklust has Will of the Forsaken (can leave play only due to fatal damage or having zero heatlh).
She also has the game text "When Sivandra enters play, draw a card, then destroy an ally in your party."
So the questions from my (very insistent) players are:
If she is the first ally into play, can she stay in play? (My ruling: Yes; there are no valid targets for the "destroy an ally in your party".
If another card says "destroy an ally in target player's party" with Sivandra's controller as the target, can that player choose Sivandra as the target? (My ruling: No; she can't be destroyed [destroyed being synonymous with removing from play] thus is not a valid target.)
Looking forward to finding out how wrong I may be.
WoW TCG RK/PM/TO/Specialist 1