Ivern Rework to improve Playability?

So I had this thought after watching a recent video about why Ivern has less than 1% play and after playing him myself I came to a conclusion of my own.

Daisy needs to be replaced. You have a champion that wouldn't hurt a fly but sends out an elemental as his ultimate? Why not replace a bad version of Tibbers with an ultimate that defines his role as a supportive jungler and as a living embodiment of nature.

I'm referring to Yggdrasil, the World Tree

What if Ivern could unleash the fury of the jungle by springing forth a massive tree that** draws in nearby jungle camps to his aid and provide an AOE damage buff to strengthen them for a limited time**?

Not near a monster camp? The tree brings out your most recent jungle camps you liberated. The tree provides! So imagine red, blue, and gromp coming down on an overextended enemy lane.

The drawback for an ulti like this, is it would root Ivern in Place like a Channel as if he were becoming the tree of life itself, and have costly amount of mana to justify such an ability. And yes killing those creeps would yield gold and buffs (another drawback)

It's unique to the game as well as to the champion using it. And might even make for some insane pro plays?

Let me know your thoughts. I just want my tree boy bum to have a home again.