You can freeze it with a snow owl and build gates on it so it wont escape
Managarmr
A dragonlike ice creature, the Managarmr is a swift, highly mobile mount for rapid travel. Its freezing breath adds a distinctive edge in combat.

A dragonlike ice creature, the Managarmr is a swift, highly mobile mount for rapid travel. Its freezing breath adds a distinctive edge in combat.

Player-written tips for taming, using, and fighting the Managarmr in ARK: Survival Ascended & Evolved.
You can freeze it with a snow owl and build gates on it so it wont escape
These guys poop a lot. I’ve noticed it few minutes after my surprising tame of day. Check random video about Manas, in a few mins it’s full of sh*i