He's literally Karrigan.
No, I mean literally its Carrygun's clone genetically engenered from his DNA in the future. They sent him back in time to just the beginning of valo esport. They gonna make it public in 4-5 years after he chokes this champs in the finals (Boston script) and he wins couple other champs. Point of divergence of this timeline was Karrigan realizing that "valorant is pretty cool" but being too old to conquer it. It was only peanuts after karrigan's big brain child IGL'd science team to creation of time machine.