Update: I was unfortunately not aware of Shamus Young's severe criticism of Fallout 3 available here to link in the original piece and I regret that. It dovetails rather nicely with what I've written and it's much better executed than my piece. I strongly recommend anyone...
As the sequel of the epically awesome Dragon Age: Origins, Dragon Age II hardly needs an introduction. Coinciding with the story from the first title, it tells the tale of Sir Hawke, of his escape from The Fifth Blight in the kingdom of Fereldan to the fair (or rather, unfair) shores of Kirkwall where his family is meant to have an estate. However, it becomes clear that his family's wealth has been squandered, and to reclaim his family's former glory, he must rise from a lowly refugee to a champion.
Make a shortcut to your "da2.exe" file (typically located in the C:Program Files (x86)Dragon Age 2bin_ship folder) on your desktop, Start Menu, or wherever. Right click on the shortcut, choose Properties, then add the following to the end of line in the "Target" field: -enabledeveloperconsole — it should look something like this: "C:Program Files (x86)Dragon Age 2bin_shipDragonAge2.exe" -enabledeveloperconsole Once that is all taken care of, type the following commands into the console after activating it, in-game (typically the "~" key). Note that you often won't see any notification that something has changed. Also note that you will not see the console, or what you are typing - this is normal. Furthermore, note that the console is automatically closed when you press Enter, so there is no need to "toggle it off" (doing so will bring it back on, which can make it seem like the game is stuck and doesn't respond to input).
1 minute attribute buff, where x is attribute and y is amount.
runscript dbg_setattrib x y
Add experience points to your character(s) for faster leveling up
Allows you to add any member to your party
Changes player to a level 2 mage
runscript chargen mage
Changes player to a level 2 rogue
runscript chargen rogue
Changes player to a level 2 warrior
runscript chargen warrior
Creates a invisible force field that knocks back anything close to you
Gives player 1000man/stamina, 1000 health and 50 strength and 50 dexterity
runscript zz_supercrit player
Heals your character(s)
kill all enemies
Opens an interface that will let you adjust a companion's Friendship/Rivalry level
Opens the enchantment window
Removes all injuries from party
runscript injury remparty
Where "xx" is the amount of gold you want to add to your inventory