Magician post jump , infinity or glacial chain first?

I'll repost my explanation here:


Reason for Infinity before Glacial Chain in training build: Glacial Chain's main purpose for training is to control mobs with added DoT for
extreme magic. 1 point already has the max range, max number of targets, and a 5 second cooldown. Infinity provides an additional damage boost
during duration and there's no risk of being dispelled.

Reason for Glacial Chain before Infinity in bossing build: Glacial Chain can be used every 5 seconds ignoring defense and providing DoT for
extreme magic. Infinity seems to have lower priority to max due to the 2 minute cooldown and a chance for dispel at high level bossing.

If nexon didn't remove the party areas, then I would do glacial chain first for training.

Not sure about monster park's availability/exp but if its good enough, then glacial chains would go first for that area as well.

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.