According to the patch notes De'lim's Mass Teleport was changed so that it moves from 6 spaces to 5 spaces and the AP Cost went down from 5 AP to 4 AP. In game, the ability still costs 5 AP (but correctly moves 5 spaces).
I don't like all acolytes being costed the same, but maybe it's just me looking at balance in an assymetric game from an assymetric point of view.
If this was implemented, I'd say it'd go: Magic would be most expensive, then Fire/Frost/ then Storm, and then Acid being the least expensive.