The resolution of the riddle:

Phantom

Phantom. 

It's Deadly tier 4th 

Phantom 👻 

Phantom

Phantom

Phantom

hello Alice

it's me again" Orion", here's the answer in picture... Fantôme or Phantom

Best regards

Phantom

User ID 16815310

phantom User

 ID: 5532899

phantom User 

ID: 5636265

phantom

phantom

 User ID: 45844186

Phantom

Phantom

Wise Jarls! Help us to solve the riddle of eternal ice world's guardians.

The gates of Jotunheim are sealed. Our prophets translated the runes on the gates – in these lines, the guardians of Jotunheim have hidden a name. You need to say this name to open the passage and enter the world of ice. 

Here's what the runes told us: 

Here one moment, gone the next – this is his motto. 

Only those like him can notice his presence. 

He knows your secrets, 

Since no mysteries can be hidden from him. 

To participate in this giveaway, you need to: 

- Guess the his name 

- Write the answer in the comments to this message

On 01.03.19, we will randomly choose 20 lucky participants from among those who give the right answer. In appreciation for your help in opening the gates, our prophets will grant the 1.100.000 Gold, x15 1-Hour Increased Shaman’s Offense, 20%, 2.600.000 Shaman’s Power to each winner.