At the very least change the ult. I'd say his kit is mostly fine, but his ult is just a bad version of Kindred's, especially with the delay.
And while you're at it, add some more damage to one of his abilities. Maybe his W. As far as I know E is his only damage ability, along with his passive.
If none of these things apply, I'd say you should nerf his mana costs at least. The mana cost on his heal increases by 20 per rank, which basically starts to cost more or as much as his ult does at rank 3.