Trust me, you guys don't want Maokai to have a defensive steroid.
https://www.youtube.com/watch?v=b0VJWBe7R_c
Would have used my own replay of a similar experience but it was 22 matches ago so I can't download the replay anymore :^)
But yeah, you want him to have defensive steroids mixed with that heal that refreshes extremely quickly in battle? No thanks.
(Also healing brocken it hurts me to look at that im js)