wanted to post my thoughts on this after seeing another review.
this card is 100% a 5 star (claw? fang? used to be cog?) card in a recursion deck.
stack the deck with khapra's, warpspawns, prime pressence, adren ...... lots of cards like that. some spirit gates and/or palace of bones and lots of draw you can now get your big legendary on your opponents end phase giving opponent less time to respond to it and at a cheaper cost. and a couple grave diggers so you can refill your deck if needed and you're golden.
outside of a recursion deck i see this card as almost unusable i'ld give it 1.5 to 2 fang?
when I first stepped on the scene years ago, when these stomping grounds was known as advanced fallen worlds, this was my favorite card. for a few res he can snatch any creature your opponent puts on the field, and he can do this for the entire game. find ways to protect him, and keep him on the field, and the game should be yours
I know that is a very basic territory, but I love it's effect.
Is ideal to change your hand when you need discard some useless card to get a new one. Plus that, you can use it to deffend in bad situations.
In new decks will be good for any player; and in advanced decks, if you have space to fill with territories, could be a good option for you.