Interesting concepts. A nice feature for beginners would be to warn you when you're about to cast a tower without an attached spell - or a spell that won't do anything.
@huntmedown: I tried firecell - upgraded version. Lost 3 out of 4. You can't get a positive win ratio fighting false gods - not unless you only fight the one the oracle predicts and build a deck with upgraded cards specifically against it. Telling beginners to "farm" false gods is cruel.
I checked out Insanitysplea's claim. Slay claims to be from 2 years earlier to this. Does anyone have any information to the contrary? Not that copying games is anything new or uncommon, but don't vote a comment down if it's true.
It is such a shame that you cannot see what hapened in the game.
Such potential, harmed by such easily avoided flaws. Seems like that's humanity, defined.
vpala, the challenges are off balanced on purpose - to make them a challenge. Some are easier, and some harder. I found "Technowall" to be easiest to build a killer deck against. I find the ambushes to be the most difficult. I don't think your card draws are affected by a 'cheat' routine: if it's really random, you will get horrible draws sometimes, just like in real life.
Also, what do you mean by "37 rounds on insane mode"?
Documentation. Documentation. Documentation. It needs to be easy to access and complete. Example "Reset saved game" is unclear, so there needs to be a big, obvious link to the documentation which says exactly what this does. Does it delete all saved info, or does it take you to your last saved position? Or something else? To all game makers (all programmers): if it's worth making, it's worth documenting. If it isn't worth documenting, it isn't worth sharing.
@dugong: Well, yes, phase shield is way overpowered. Do what I did: as soon as you can buy and upgrade, make a deck with part ether and phase shields. You win. Just like me. But, please, don't put phase shields in your arena decks. Use them against arena. Don't put them in arena.
My score today: 31629 - but I don't use phase shields against humans - it's just too lame.
Pkmn: "This one is a grindffest, and it is the same for all of them I've played, except for some sandbox-ish simulators for popular card games." Compare any real-life CCG. Or, for computer games, Etherlords, Wizard 101, Spectromancer ... The advancement pace of Etherlords is near perfect.
"Any CCG (Or TCG) is a grindfest."
Fail.
You have obviously not played many such games.
One of the nice things about CCGs is that they don't have to be a 'grindfest'.
Too bad one can't progress when one is stuck. If one goes back and wins a level there should be at least a small advance. Otherwise, why challenge levels one has completed?
 "Night the Card/Defense Game"){kind=icon}
 "Elements"){kind=icon}
 "Garden of War"){kind=icon}
 "HD Spectrum"){kind=icon}
 "Crossword Puzzle"){kind=icon}
 "I Am An Insane Rogue AI"){kind=icon}
 "Legacy of Heroes"){kind=icon}
 "Book of Mages: The Dark Times"){kind=icon}
 "Steampunk Tower"){kind=icon}
 "Dragon Age: Journeys"){kind=icon}