How hard is 6* Droid Event?

Gruff

I almost have IG-86, IG-88, HK-47 all at 6*. Will I need IG-100 too? Farming it is so slow given 2* base hire.

Jabberwocky

I can easily auto it with HK, 88 and 86 but they're all maxxed.

Gear and ability levels are crucial, there isn't much strategy in this challenge,

Gruff

Thanks. I wish I had of asked this before I started farming 100.