MORE WEASEL TUNNELER! MAKE WEASEL-PRIEST GREAT AGAIN!
But there are so many interresting combos:
Both Elise Starseeker (2 maps or 2 Un'goro-packs), Psychic scream (on a board full of crap allows this to fill the opponent-board, killing all chances of combo-decks to get their combo out), Entomb, Naturally a lot of rogue-cards and so on.
If this works with Psychic scream, weasel-priest might change from a meme-deck to a competitive one; as mill rogue is it nowadays too.