Idea to make Incinerate moire interesting

I played incinerate last league and dropped it because the gameplay was pretty boring. Basically press a button then strife right or left.

My idea to make that skill more interesting would be that if you stop casting it after channeling for a certain amount of time or reaching max stages, you summon a mirage (proxy) that continues to channel for some seconds. The proxy could have a limit of 1 that could be increased by "+1 to limit" modifiers we have on Idol of Uldurn or the new passive on stormweaver.

This would look and play a lot more interesting i think.