Since your voice wont be heard ( by reasonable people ) on the steam forums I created an account just so I could post this here, to post what is not on point balance wise in this game
Most issues originate from the cardsystem and spacemarines being slightly underpowered but I'll start with that one problem not connected to the cards wich is that :
-The broodlord sucks .... yeah , dont even try to defend this guy . Paying a card and 3 genestealers for 1 genestealer spawnpoint that can teleport is not worth it , its simply not . He's 200% not viable because 1. he can only teleport after the deployment phase and 2. he dies like everyone else ( to a psystorm ) .He needs drastic changes to be good like either of the 2 following suggestions :
giving him improved combat stats to make him viable as a fighter
allowing him to teleport in the in the deployment phase would make him a good spawn point
either ( or both ) of these changes should be accompanied by a 1 broodlord cap in form of his card not appearing while a broodlord lives though ( if a cap doesnt exist yet, I dont know since nobody ever plays this guy )
But now to the main problem .. the card system . I think the system itself is a good idea , its a fun addition. That problem why genestealers are slightly better ( no faction is "completly broken" ) is the conversion rate of the cards.
Getting 2 action points is not as good as 3 new genestealers , not in the slightest . The strength of the active powers of the cards vary but overall they're somewhat balanced , unlike the conversion rates .
I compared genestealers "playing nomally" vs what I do , exploiting the sheer numbers you can get with cards . Normally ( one biomorph each , even the broodlord ) It actually was somewhat fair .
Then I tried getting the most numbers you humanly can with the cards,
1. bulwark 1 .reaperfex 2. miasma , always use a card that activly gets you more genestealers (gain more blips / more genestealers in a blip ), then convert one that doesnt . Repeat until the map is swimming in Tyranids and all Space marines are dead .
Funnily enough I dont think "genestealer cards are underpowered" , its more that space marine cards are underpowered .
Its more that the terminators got some of the best and some of the worst cards( like the sergants "give all action points to ..." card). Genestealer cards are usually either good to convert , got a good active or both . Terminator cards are usually good and convert well , or they suck at both.
Hope that the emperor / a hivemind will hear my prayers .