Summer Encampment
Any Phase: If it is Summer, kneel Summer Encampment to return a character you control to its owner's hand.
My question surrounding this card is, can I use this card to return a character in the Moribund state to my hand. I assume that's its purpose unless it's specifically designed to use with red warlocks. And if I can, what about when an effect like Marched to the Wall says (cannot be saved), am I able to also do it in that circumstance, as it doesn't specifically say save character like with Unburnt which says save character then return it to hand.
While I have you here, Captain Groleo claims a power for your house when an opponent plays or reveals an attachment, does discarding it from their hand during an intrigue challenge count as it being revealed.
Appreciate the help, thanks.