Magnus’s RPG empire on the portal.

I charged at him on a mammoth!

Very reckless. The Necromancer directed skeletons at you. Of course, the mammoth turned some of them into bone meal, which enraged the Necromancer so much that he screamed, inflicting Luck -1 and Morale -1. On the 5th turn, he also cast some kind of spell. Like a magic arrow - damage -20 HP. But the mammoth didn't like the wailing Necromancers and charged at the Necromancer. The Necromancer was forced to retreat to the corner and began to mutter something evil. Now, the skeleton archers are attacking your mammoth - 15 HP. What are your actions?