Whenever you draw your second card each turn, put a +1/+1 counter on target creature you control.
+1: Draw a card.
−7: Creatures you control can't be blocked this turn.
(03/05/2019)
If an effect instructs you to draw multiple cards, Jace’s first ability triggers after you draw whichever is the second one for the turn (if any). You choose a target for the ability after you’ve drawn all of the cards.
(03/05/2019)
If a spell or ability causes you to put cards into your hand without specifically using the word “draw,” it’s not a card drawn.
(03/05/2019)
Once Jace’s last ability has resolved, its effect applies even if Jace has left the battlefield.
(03/05/2019)
Jace’s first ability can trigger only once each turn. It doesn’t matter whether Jace was on the battlefield when the first card was drawn.