Morgana’s changes in the most recent patch have made her a bit too strong. Riot changed her passive’s healing (which isn’t spell vamp) making it a little bit too strong, so she was way too good in team fights.
A day after Patch 7.24 dropped, Morgana was sporting a 59 percent win rate in the mid lane and a 52 percent win rate in bot lane. That being said, she was doing way too well mid and sustaining way too long in team fights thanks to her passive and her ultimate.
The changes in the hotfix are as follows:
HEALTH GROWTH STAT: 98 ⇒ 90
Damage to heal conversion ratio adjusted from 15/20/25/30/35/40% (at levels 1/4/7/10/13/16) ⇒ 20% (at all levels)
W - Tormented Soil cooldown increased from 10 ⇒ 12
So she gets less health later, deals more early damage but less later and has a higher cooldown on her Tormented Soil. Hopefully this fixes her way-too-dominant issues!