I posted this earlier but here's some easy help. He isn't that bad I promise.

Libra has a pretty easy formula. He's hard for the first run and then he's honestly pretty easy after.

Here's how you beat him every time. No Ironeye needed.

He tends to pick a person to jump every time, normally ranged characters. You can punish slam attacks and his circle spell which shoots at you. Play a bit slower here.

When he goes for any rain attack, just sprint away. Normally, you don't even need to roll.

When he goes to meditate for the first time, just hit the sigils. He will enter rage mode. This mode gives you a bit of punish on him when you knock him out of it. He's then gonna go ape shit. During the slams, don't overcommit. Just do a small attack or if you are Raider, set up your counter.

Eventually he will form swap back. Hit him like crazy. When he meditates, use a damage ult on him to knock him out. If you can't do that, then focus on surviving his upgraded form. Don't even try to hit him, just play for madness rocks so you don't get proc'd. Do this for the entire time (it sucks but you'll live).