Feedback:User/Miclee/Elementalist Earth 'Pillar'

Been thinking of this idea for a while, thought I'd share it.

It's an elementalist skill that would mos likely fall under the 'earth' element. It creates a pillar of whatever the elementalist is standing on at the time of casting(ice, dirt, rock, etc.) which elevates them, making them unable to be hit by melee attacks. Enemies can hit the base of the pillar repeatedly to make it fall, though, making the caster of the pillar fall and get hurt. It's a new way to make elementalists avoid melee damage, while letting them be somewhat closer to the battle. It also gives them a height advantage, increasing their range.