I think there should be a feature that allows you to recycle cards which you're not using. For example, trading in 3 cards gives you a new random card and the rarity depends on the cards you've traded in.
Keep on going "New Game" to gain easy achievement for Battle Gears. Max out Crit and AS for Kills, Crits & Pots achievements before heading for Rebirth. Max Crit can give very good damage for Rogue without upgrading Att and Battle Gear. How nice if auto-clicking can be activated because getting to level 50 is a pain in the ass.
Please consider achievements which gives double profit, double speed and increase of profit by percentage for CPS. I have 73 KRAKENs and it'll take me around 7 hours for the next unit. And also please consider bonuses on reset.
I roughly did some counting and found out the sum of all the shown profit per sec doesn't match the actual profit rolling in. The number runs slower than actual count.
 "Idle Pins"){kind=icon}
 "Idle Invaders"){kind=icon}
 "Holyday City Reloaded"){kind=icon}
 "RPG Market Idle"){kind=icon}
 "Bloodline Legacy"){kind=icon}
 "Crusaders of the Lost Idols"){kind=icon}
 "The Wait for Civilization"){kind=icon}
 "Strikeforce Kitty: Last Stand"){kind=icon}
 "Idle Pixel Slayer"){kind=icon}
 "Stone King 3"){kind=icon}
 "Conspiracy! - Rise of a New Leader"){kind=icon}
 "Idle Necromancer"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "Auto-Attack!"){kind=icon}
 "DPS Idle"){kind=icon}
 "1Quest"){kind=icon}
Currently working on this. EDIT: fixed! You must type the code without pasting.