Most OP unit in dark side?
 

it may very well be the early game demon "blood priestess"

Her sacrifice ability reloads fast and lets you generate infinitely many new units! even level 5 ones!!! all it requires is that you pair it with more demons to sacrifice! (even though they're summoned)

The amount per activation is also much higher than that of resurrection spell or ability.

I've been exploring different online casinos lately, particularly because I'm currently in Australia, and I must say, Clubhouse online casino has really stood out to me. The site offers fast payouts and a great selection of interesting slots that keep the excitement alive. I've had some decent wins recently, and their bonuses are quite generous, which definitely adds to the thrill. If you're into gaming and looking for something engaging, I highly recommend checking it out for a fun experience!