Expedition Mage Enemy AoE needs balancing

When doing expedition events in maps and logbooks, a common enemy that spawns is a mage. This mage can summon a very large Circle that explodes after about 1 to 2 seconds.

This circle is really hard to see, especially when there is a lot of screen clutter. Furthermore, if you are in the center of the circle when its placed, dodge rolling doesn't put you outside the AoE, it puts you on the edge and the dodge roll takes just long enough that when it finishes, the circle explodes.

I think the circle either needs a longer delay until explosion or a smaller radius. It definitely needs to have higher visibility.