Ok, so here's the oracle text:
Cast Camouflage only during your declare attackers step.
This turn, instead of declaring blockers, each defending player chooses any number of creatures he or she controls and divides them into a number of piles equal to the number of attacking creatures for whom that player is the defending player. Creatures he or she controls that can block additional creatures may likewise be put into additional piles. Assign each pile to a different one of those attacking creatures at random. Each creature in a pile that can block the creature that pile is assigned to does so.(Piles can be empty.)
This took me a couple of reads to fully understand, but I think it's pretty good. You may end up with some unfavourable situations, but it will probably work out well for you. I honestly don't know why they didn't just change the card to say: Assign blockers at random this turn or something to that effect. Other than that, it's pretty cool.
Pros: Random blocks for an opponent
Cons: Random blocks may mean bad situations for you