Jace exiles but comes back flipped and when it dies it goes to the grave. U can use command to recur jace twice in 1 game if u have 2 jaces or 2 commands.

Chef_Mackaroy, Metamorphic1992 explains it pretty well. I know its a little confusing but you can actually have a Jace flipped and unflipped on the board at the same time. If there is a Jace in the yard and on the battlefield, you can flip Jace, play command from the graveyard to bring back an unflipped Jace from the yard. Don't know why you would but you can. I prefer flipping Jace, either slow down an attacker or flashback removal and then when it dies command on your opponents end step to bring him back to flip on your next turn.

Tokens huh? what would you suggest? Like Monastery Mentor?