Left one is similar to alchemist with destroy instead of poison and no cure, while right one is ranger++ without any attack squares. Tbh with rangers removing the attack squares isnt the biggest deal, it would of course suck a bit but I think it'd be equally capable of destroying AI, while personally I always felt it was kinda clunky to try to use alchemist because simply when using ranger you gotta be able to easily reposition to nearby squares because minions usually don't have high movement, while it's hard to attack a minion two turns in a row using alchemist, so conclusion I'd value A at around 8 (seems decently balanced against alchemist) and B at around 10-11