I'm certain no one will be
entirely low tier in this game based off of the three variation system.
There is a chance that one version with play like shit, and another could be the best character in the game. Or two of them are entirely balanced and one isn't. For all we know they could work perfectly well. But there is no way they'll all be terrible or notably amazing.
Even among the other characters revealed, his variations are wildly different in function based on what we know now.
He has Blood God which is mainly about setting up buffs and passive abilities(that light he summons heals him and damages enemies BTW, he can give himself buffs at the cost of in)
Sun God, which is about grapples and chaining them:
And War God, which is all about getting in the enemies face with his large weapon, it looks to have good range and damage:
He can heal himself rather quickly with one bar at the moment, so that's pretty swell(it appears to have a recharge period though)
At the moment he also seems to do a ton of damage off of "nothing" combos that look to require low execution. And his current launcher seems ridiculous.
There's no way of knowing for sure, but I have faith he'll turn out "ok" on most fronts or at least one, given what we see now.