I think formula for g/s is messed up, it shouldn't change until amount of hits to mine ore changes. It should be "rounding up(health/(damage-armor))/(pick speed)"
For "the bowl" move city to high ground, protect left part, let the creeper pour in from the right, use mortar, so it wouldn't overfill, and cap nodes.
Small update from 08.08.13 - second slot in trader now always would have card, which you can't get in campaign/craft with campaign drop. 4,5% chance for unique card. Thank you, Greywing.
For "All achievements" you would need to complete 17 wars, each takes 1 week of real time(only 2 players managed to get it since release). Are you sure that this is good idea?
I once suggested easy/medium "choose a race" (10 wins), medium 35 and hard 70 achievements.
Suggestion for 59th level - add minimal radius of spin (like 3-5 pixels) around blue square near big black grinning colossus so we would be able to choose direction of launch.
There are plenty of instakill cards like duel, ambush, lost mine, antimatter bomb. Or you can permanently disable it with vulture or (scanner ghost+armor buff)
Tried every party composition on epic difficulty. Best variant - Matt, Lance, Anna. Matt gets all Ham, Lance all cakes. Third character inevitably will slack in terms of damage, and thus Anna wins over Nat due to having party-wide evasion buff and possibility to apply 3 status effects per shot to each enemy. Nat can apply only one and only to one enemy. Nothing satisfy more than rolling death effect from alchemy bow on 2 squids at once. There are 2 instakill effects - doom and death, so possibility to roll one of them - 2/13, ~15% per hit, and you hit 3 times per shot.
Charge enables strong attacks, it doesn't change stat. Like hyperbeam for Lance - you need to use it twice, first for charge, second for damage. If you get random charge from accelerator - you can cast it immediately.
Can you also fix this: when last enemy dies from poison/burning, you don't get turn and next wave start to attack? You already fixed this with counterattack, so this is same issue. Thanks for nice game, take my money.