Magician post jump , infinity or glacial chain first?

Then it be best if you research monster park, because as of my knowledge, the monsters have almost the same stats their LHC counterparts had, and it becomes the first training option for anyone while you arn't looking for tickets. Infinity would be best till later on.

I already know about the mobs/exp.

Its the ticket requirement that I'm uncertain about since some posts stated that it has limited
access.

Glacial Chain already has the maximum use for mob control at level 1.
(They should added a passive effect for ice strike. =/)

Infinity would have better priority during regular training sessions.