I cannot test this right now, but on a forum I saw and answer that it is because of the hero portrait and one should try to use the original Thrall portrait.
Apparently the old totem is tied to other portaits, but this needs to be confirmed.
The Shaman portraits also seem to be bugged: I selected Earthfury Thrall (the lvl 50/100 Shaman portrait) for a deck but when the match started it displayed King Rastakhan.
So, why am I still summoning it?
Is it cause I'm playing Wild?
Fuhgeddaboudit
I cannot test this right now, but on a forum I saw and answer that it is because of the hero portrait and one should try to use the original Thrall portrait.
Apparently the old totem is tied to other portaits, but this needs to be confirmed.
I'm playing standard and I'm still summoning it.
The Shaman portraits also seem to be bugged: I selected Earthfury Thrall (the lvl 50/100 Shaman portrait) for a deck but when the match started it displayed King Rastakhan.
Welp, I guess there are other more important issues that Blizzard is dealing with right now.
At least I cannot find any information if it's being fixed.
One of the HS devs (@Celestalon on Twitter) confirmed that it is related to the portraits and they are working on a fix.
Source
Sadge. Shaman will never feel the same without Wrath of Air Totem.
(It was the prettiest golden Totem ;))
Fuhgeddaboudit