Gunslinger Kurtrus:
7 Mana 6/6
Battlecry: If your deck has no duplicates, shoot (and destroy) the left and right-most cards in your opponent’s hand.
Outcast flavor, plus it makes it an interesting disruptive card that you can play around.
Tae’thelan Bloodwatcher:
6 Mana 4/4
Replay all Excavate Treasures you have casted this game.
Posse Possession:
5 Mana
Summon a 4/4 copy of the highest cost minion in your opponent’s deck.
Sheriff Barrelbrim:
Make the requirement nonduplicate.
Elise:
8 Mana 5/5
Battlecry: If your deck has no duplicates, summon 2 minions from the opponent’s deck on your side.
You are welcome, just fixed these bad cards.