No doubt this needs to be patched but for the mean time if you want to infuriate your opponents then why not try Time Warp Priest. All you need is 2 copies of Radiant Elemental and Shadow Visions, you can also play 2 Questing Adventurer but you don't actually need them.

How this works is you draw both your Radiant Elemental and a copy of Shadow Visions, if you draw the 2nd copy of Shadow Visions you can not combo. Once you have these in hand play both Radiant Elemental then go infinite with 0 mana Shadow Visions Discovers and select them as quick as you can until you rope out. Now because the Discover animations take longer for your opponent than they do for you and they will have to spend their turn watching your infinite Shadow Visions animations.

Combo with Questing Adventurer for a quick kill but since you effectively have unlimited Time Warps you could just grind people out with the Elementals.

Courtesy of Disguised Toast.