Some PAX cards have been shown. Here is a very nice one.
In case it didn't upload:
Saheeli Rai 1 Colorless, 1 Blue, 1 Red
Starting Loyalty 3
+1 Scry 1, Saheeli Rai deals 1 damage to each opponent.
-2 Create a token that's a copy of target artifact or creature you control, expect it's an artifact in addition to its other types. That token gains haste.
Exile it at the beginning of the next end step.
-7 Search your library for up to three artifact cards with different names, put them onto the battlefield, then shuffle your library.