Are more relics my only option?

I got it with R3's and one R4.

The RNG is absolute BS frankly....I ran it for hours and got nowhere, was about to give up and missed it by 1 or 2 shots, so i thought, it IS possible. Next 20ish times i barely killed 1 of theirs. Was about to give up again and it finally gave up it's RNG ghost.

Also, check the vid's...Your speeds are on the low side IMO.

https://www.youtube.com/watch?v=bo0SnTfAmjI

After too many runs, it looks like I could use more damage.
My idea is that with more damge each turn will more effective, reducing number of turns as a work around for lack of speed.
Especially with Droidka as damage assisist is vital.

Stun/daze is really hard to avoid.
Really an issue for magna, I have even tried with 60% tenacity.
He is also killed too easy.