Mobile, 4.2.5.02, Android 8.0.0
Ice Wraith should steal 5 Mana from frozen enemy. It does not.
How often does this happen? When did it begin happening?
Seems to be consistent, but only noticed since the Bounty started and I was playing it today.
Steps to make it happen again
Play in a bounty with Ice Wraith, freeze an enemy, then cast on the frozen enemy (that has Mana).