On page 87 of the magazine, two feats are completely obsolete. I wish the writers/editors of articles involving feats and spells would make sure they weren't duplicating existing material in previous magazines or WotC D&D products.
SNEAK ATTACK OF OPPORTUNITY: This feat is obsolete due to the fact that this feat, both in name and purpose, has already been establish in the Epic Level Handbook. The feat in that book, also known as Sneak Attack of Opportunity, allows for the same results. The only difference is the epic version doesn't limit it to just the 1st AoO of your turn. My suggestion is to call the epic feat "Improved Sneak Attack of Opportunity" and list the Dragon Magazine one as a prerequisite to it, or ignore the feat entirely. Also, the only good this feat brings is for those that want the ability but do not plan to play in epic level campaigns.
TWO-WEAPON ATTACK OF OPPORTUNITY: This feat is ~completely~ obsolete! In the Miniature's Handbook there is a feat that already serves the exact purpose called Double Hit. So, pretty much, this feat truly has no purpose.
ADVICE: Please check other sources before submitting material to make sure you're not duplicating anything by accident.
Please ignore this, I accidentally posted it twice on the thread because my comp. wasn't loading for some reason.