Arcane Mage

The Arcane Mage is a purple mage that fires particles (much like the Mana Weaver's particles) in alternating directions. Every second, she fires 3 particles in a diamond shape (2 to left and right, 1 up and 1 down) and the next she will fire in a diagonal direction (4 going in diagonal directions around her) she alternates between these two constantly while she is alive.

Tactics
The Arcane Mage is powerful, but memorising the pattern of her projectiles will allow you to dodge them easily, and provide constant damage towards her.