How to deal with elephants

[Meglobob]

The vestals quickness will mean they will inflict damage very quickly, so kill quickly.

Your vestals are etheral so will be bounced around like the steel ball in a pinball machine. Some will die but it will take some time.

15 vestals vs 10 mammoths, not sure. I would have 30 just to be certain.

Will of the wisps may well do well against elephants. They appear on the map edge, so will be a distraction for the rest of your army.