She's the final reward from Seige, which begins this month. 

From Plarium:

Authoratix Lamasu is a great Champion for both PvE and PvP content.
Having Decrease ATK debuff as a part of her A1 and being able to place Block Buffs along with Decrease SPD debuff on her A2 with no hit when targeting a Boss (which means the debuffs will go through Poison Cloud) makes Lamasu a valuable addition to your Hydra team.

Add a True Fear debuff to control the enemies, a single target A3 skill to support an ally by removing all debuffs and placing Intercept to protect them from control debuffs (Sheep included 🐑) and the ability to boost the Turn Meter and reset the CD for that very same ally in addition to a unique Passive skill providing Authoratix Lamasu the immunity to Sheep debuff and now you have a perfect match for Arena battles.

Sprinkle that with the ability to destroy enemies' ACC and RES, and you'll get an overall amazing Support Champion that can help your team in long fights and will be a great new addition to your roster.

The passive is pretty strong. Could see her being a straight replacement for uugo in Hydra.

This champion looks amazing. 

the a3 looks like a Nia replacement in a Trunda/Hydra team, but if it works like Wixwell and spreads the intercept buff round it wont be auto friendly

Well her reset is resettable, from what I know. So very much a Yumeko flavored Supreme Uugo

Dec speed + block buffs so good for Hydra.  2 skills that can be tough to find.

For sure. 

She's an incredibly strong support champ.

Hopefully it doesn't take like 9 months to get her.

😆  I think that would be quick... or at least I'd expect that or more.  

Over/under on people calculating the number of years to get?

Not as many here as will be ranting on the Discord and Reddit about 10 years+++

That seems fast haha

Hopefully it isn't a situation that by the time people get her she will already be obsolete. 

Fun champ.

Now we wait for the details. 🙈

Honestly I figured she'd be in the same basket as Mithrala.  So what, 4-6 months?

half n half .. if you have the gear and other champion to make it work its a good one ... otherwise its a decent champ at best

You're optimistic 😜 

I hope she can be obtained the same way Mithrala is won...i.e. depending on your own efforts and not on the efforts of a whole clan. 

If it is the later, only the whales to krakens will ever get her

Always. 

I seriously doubt she's going to be unobtainable for everyone.  Of course it'll take longer for some than others but with these types of champs they've always been available to all players.

Could use her in FW at the moment - Demonspawn is my last one to complete!