There's no restricting on EDP but last time trans tourney no one used more than 1 bottle per fight anyway. 1 bottle's duration was enough to kill or be killed, unless another bottle was used as an item instead of for the skill cause i wasn't looking at that.
Same for bottles. No one survived more than 5 Acid Demonstration (but in a few battles, a lot of fire bottle was used as Demonstration on the ground.)