Yeah, the re-haste core reaction for crit is nuts. I got it twice and it scales up to 480% crit per trigger to 8 units very, very early. I got it twice on my Prot core in the same run.
Also prot core is crazy OP. It being shield is already good, having +5 permanent on top of that is just crazy. You just build a regen+shield board early and let every round go to max fatigue. By round 2 you've already outscaled all possible enemy damage and it only gets worse from there.
Once crit gets fixed to something more manageable. Honestly even with the 1/5th value thing it would still be what I'd stack. Because you still have full infinites. So like your right column will just be column +crit guy, prot core and arcane anomaly. Anomaly+core creates an infinite loop and the crit guy gives 100% crit to both basically instantly and then scales them to the moon with flat +power. Not as badly as right now (i normally end up with like 270,000% crit by the end of a round. Unless the game crashes before then.) But yeah, I'd say as soon as crit is fixed, arcane anomaly and gunslinger should probably be next.
Oh and as much as the change to mana source made it less insane, it's still insane. You just have to put in a little bit more work to make it so. (put it, water elemental and crit column regen guy on the same row and they outscale anything the enemy can do to you until like wave 50).
For early game that shield dog that gives permanent power to column on row haste is basically mandatory as it gives you instant easy permanent scaling AND shield AND column haste.
Then later you get the froggo with mana source and the ent above it to just trigger regen like mad and give flat +power to your core until it's stong enough that the core +power upgrade every level just sends it to infinity. I had a 1.2m prot core when I retired my last run at wave 78 due to lag. If power share wasn't still bugged you can then just share 25% of that to your Mana Source and Arcane Anomaly and now you have infinite regen, shielding and damage. Well you would if the game didn't completely die when you have those numbers.
I'd say overall everything with permanent scaling is currently OP. Because the choices just don't make sense. Would you like a unit that gives +5 temp power on haste or a unit that gives +4 permanent power on haste? That's not really a trade-off worth thinking about. Why would you pick temp power when the upside is +25% per trigger? I don't really think anything should have more than 1 base permanent power gain. Look at the ent, it starts at 1 permanent power gain and it still somehow always ends up being like a 20k power unit eventually.
The other overall just general balance thing is that full tank is just too good. There is just no reason to build damage when you can always out-tank the enemy. And there is currently no room to really increase damage output, because of how small health pools are. But then again, if defenses were made weak enough that you needed a health buffer, I'd just start taking the +health option on core level up again. Currently it's completely pointless due to how much shield+regen you get and how hard enemies hit (pre 10 since they can't break your tank, then in infinite it's because you can't keep up with their damage scaling)
Edit: I'd strongly advice to just implement an internal cooldown as well. At least until you've fixed all the infinites, assuming you want to remove them at all. Because the game just simply cannot handle the current infinites. I just made a very, very weak infinite with low numbers (by this game's standards). And it still became CPU melting at wave 36. Oh and until the +crit reactions are either tuned waaaay down or just removed. Crit core is useless. It gives like +10 crit at the same time that a core reaction would give +100 crit to 4 allies. Like what is even the point at that stage? Same with the +x instead of +x* cores like mana crystal. It just doesn't do anything when compared to the reactions. There really isn't any reason to pick any core but prot. Since your core is just a reaction stick, with the only possible relevant upsides being permanent scaling (yay) or shielding (also yay) or regen (we get regen elsewhere, don't care).








