I've always loved Ancestral Spirit shenanigans in Shaman. Now everyone can join in! I'm looking forward to messing around with this card.
Sadly, Reincarnate is no longer around for the old combos, but this could be a nasty addition to deathrattle decks in Wild. Moat Lurker is an option for the same thing in Standard, but at 11 mana (even assuming the card you want to copy is in play) it is probably way too slow.