Okay so this is the 2nd iteration that I've settled on for Portal Priest. It revolves around copying and buffing and trading the board all game long. There are plenty of targets to use your copy abilities on like Elekks to secure momentum into the end game (you probably want to banker or seance or spirit of the dead copy it once), Portal Keepers, Pipers, Zilliax, etc. Almost anything can be synergized to shuffle itself and draw enough to keep the board filled and your hand plentiful. Managing to keep seance around for the opponents legends can be fun. I usually stick at least one on zilliax, perhaps a vivid nightmare and drop a spirit of the dead down for laughs.

Once again drop suggestions below if you have them! Enjoy the weird new archetype.