You can buy and consume it only once. After consumption, you deal 15% more damage to troopers and neutrals, but 20% less damage to heroes and objectives, for 10 minutes.
This is similar to the potions of league and the only issue with something like that in this game is that you just never have enough money to not buy slots. The issue with an item like this is that it would a. take up a slot and b. giver you a massive damage disadvantage in fights. plus monster rounds exist.