I actually find the game too easy; I don't see it being that feasible to balance this game well. It's possible with a lot of changes/work. However, so long as you're good about not diluting your deck with needless cards, you can consistently obliterate everything with each character, rarely ever needing to heal from the shrines in the path.
For me the most "Meta"/"Broken" things for each character would be: (excuse me as I forgot the character names already, I usually just refer to them by their tits
, I'll just name their sort of "class")
Knight: A card draw strength build, you can use the basic attack cards you start with(easier to get this build working), or the swipe card that hits all enemies(more OP if you find enough of those cards).
Priest/summoner: 100% a Bee nuke build. Place Bee, buff Bee, keep bee alive, win, strongest build in the game by far.
Rogue: Stealth+Posion = spectate and watch your enemies die. (The poison all card is much more relaxing, but crafting poison darts is totally fine if you can't find enough AOE poison for the deck.
Side notes:
Any 0 mana draw, 0 mana give energy, or both are ALWAYS grabs and keeps.
Any cards that don't help your build/combo you obviously want to discard and not pick up, you'd most often be clicking skip when asked which of the 3 cards you want after a fight.
If you really want to cheese the game for the scenes, just spam the game on Easy Mode. The game isn't that balanced anyway. So don't feel too bad.
For the upgrades/relics you get, I almost always take the extra energy one, since I already have good card draw most of the time, though on Priest and Rogue, sometimes I take the extra card draw. (As hot as it may be, the extra health choker thing is not very useful).
I'm sure I'm the dumbest one on this thread , but if anyone finds this useful in anyway what so ever, I'm glad!!!
(Despite me sort of flaming the game for bad balance if you want to look at it that way... I really like this game, it's super satisfying, albeit a little repetitive).