Units on arena

Gildenlow

Hey guys, so I'm going all the way for Hercules on the arena, I know this is going to force me spend units admnd I'd like to be smart about it, so what's the best way to spend them, refreshing 4* 5* or 6*

They should be boosted and maxed out. Any experience on this?

Gamer

What version you grind for 5 or 6 star if it as a 6 star probably 10k unit bost r3 and over 160m just to be safe he se to hype op to even go lower 60m for the 5 star maybe the 6 star hige but. What to bots can’t said