Counter target blue spell. If it was a Jace planeswalker spell, scry 2.
"I had hoped for more from you, Jace. But I expected as much." —Nicol Bolas
Illustrated by Kieran Yanner · Hour of Devastation · #38
There are no rulings for Jace's Defeat.
Counter target blue spell.
Counter target creature or planeswalker spell. Create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.")
Counter target spell if it was kicked.
Counter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Counter target spell if no mana was spent to cast it.
Counter target spell.