I haven't seen the expansion, and am greedy for details.
There's the Stasis Rune, which is played during combat. It causes the next opposing unit played into battle to be destroyed immediately without using its When Played ability. The ultimate "I dare you" card. A whopping 6 influence, though.
Then there's the Seer, an Action to reveal the top two cards of a player's deck, discard 1, return the other. Then you may draw a card. So it can be used for filtering or offensively. Seems quite nice for 3 influence.