There are a few rules for fights that need to be mentioned dealing with the way the site works.
1. If you are in a fight then your character must remain in that city. Leaving the city while an active fight thread is open is forfeiting the fight, and if it's a death match then your character is legally killed. This includes wanting to do side role play's elsewhere while waiting for your opponent to post.
Side-note: You are allowed to do side threads/role plays while in a fight so long as it is in the city that your fight is in.
2. Unless a postpone is agreed upon by both parties any fight to where someone has been absent from posting for three days or more will automatically lose. This means that if it's your post in a fight and you wait three days or more to post then your character automatically loses. This includes if someone is having to wait for you to fix your post before they can post, if it takes more than three days for you to fix your post then you forfeit, or if it's a death match your character is legally dead.
3. You cannot add/change/remove items or abilities after a fight/thread has already started. Doing so is considered meta-gaming and an instant death to your character.
4. Everything you do in a fight must be spoilered. This includes any sort of speed boosts, strength boosts, extra senses, weapons, ect. If your character is doing it then you must spoiler it. If it's not spoilered then it is voided. It is NOT your opponents responsibility to have to search through your profile, item list and ability list to search for what you're doing.
5. If you did not put it it did not happen. It's as simple as that. There are no assumptions, even if it's an active or inactive ability it MUST be placed into a spoiler or else it's voided in your post.