haven't seen this yet,but will give it a go
The Bounty Builders are good, when you knock someone out you take half the bounty and half adds on to your bounty and so on. I've seen some people with $1,000+ bounties. The final winner keeps the winning money and the bounty on their head.
Variance is through the roof with those. Just like spin and go.I think they're good , you play faster than the others sit go