What if skarner could create pillars wherever he wanted?

Skarner was killed off last season after a terrible attempt at a rework. What I think to be the problem is his new passive. Fighting on it is strong, but once you leave it, Skarner is trash. His base stats are so weak because being on his pillars make him extremely strong. So what if his Pillars could be placed anywhere? And if they gave a buff to all units around them, he could place a Pillar at mid, granting his allies and himself bonus health regen and mana regen, or maybe a damage passive that works similar to luden's Echo. (maybe rift herald dealing low scaling true damage)

They wouldn't last forever though, maybe 60 seconds, with a cooldown of 80, working on a charge system of 2. Gains a charge every 100 seconds.

The current pillars could be replaced with smaller ones that grant increased damage to monsters or something to help his jungle clear, like they currently do.

To place a Pillar down, you'd left click your passive and it would spawn melee to you.

Pillars could have health similar to Azir's passive. Where it would have a large amount of decaying health, over the duration it's been placed.

Therefore, you could destroy it during the fight to even out the battle, or even send someone in to tank kill it before the fight.

I think this would make Skarner much more interesting to play, and give him something to bring to the table in competitive play.

EDIT: Numbers are weird, those were just there for an example.