Achilles

Achilles is a character from Assassin's Creed Universe. He is a mentor of Connor and one of the big good badass hero we have ever seen.

Blackpool
Achilles debuted as one of the important characters, helping Connor and others fighting Templar Orders and The Terrorist Unit, and a new mentor for the B Team. He also met Princess Celestia from the past. They were both good partners and protected eachother.