[+1]: Draw a card.
[+1]: Untap all creatures you control.
[−9]: Gain control of up to three target creatures.
In a multiplayer game, if a player leaves the game, all cards that player owns leave as well, and any effects that give the player control of permanents immediately end.
The control-change effect of Jace’s last ability lasts indefinitely. It doesn’t wear off during the cleanup step or when you lose control of Jace.