Arga d20

[Superfluous Crow]

I must admit the rewards seem a bit measly compared to the risks, but I'd do it just for the coolness factor. and those components would be so much fun to obtain :D Getting Whispers of Chaos immediately after finishing the Incantation seems like a good idea. Can't you do anything else with the Entropic powers? Well, i guess you can light fires and such of course.
Giving out feats for free can quickly get out of hand; I've never been an advocate for game balance or any such, the players should just enjoy themselves, but D20 depends a lot on balance so you should be careful not to tip the scales too much. Also, you must at least lay out some guidelines if others are to use the system.
And that's the problem with feats and talents; you want to have a lot of them, but can only get a few.

[O Senhor Leetz]

Balancing that out a bit more wouldn't be that hard I think. But I think you get the idea behind it ;)

But actually, no to the fires, yes to other things. "Flames" is probably the wrong word to use. "jets of decay" would be a closer fit. You could use the "jets" (What would be a good word to describe this?) to just totally disintegrate and speed up entropy on basically anything - armor, shields, buildings, the works. Armor would rust and turn to powder, buildings would rapidly age and break down, people would, well, *melt*. A creative character could destroy the floor that an enemy is standing on, melt a chain that's hold something above an enemy, collapse a ceiling - being able to disintegrate any thing immediately could lead to some really cool things.

I have this mental image of a dirty, small, wheezing man who all of a sudden just starts screaming and flinging sickly black flames-like things, totally laying waste to everything, before he crumples down, and starts wheezing and muttering to himself like nothing happened.

[Superfluous Crow]

Hmm, maybe it should pass through hardness to make it more effective against objects. Or ignore the first 10 points or so.