[quote=@Rilla] Usually just magic, but anything can be prepped. Any ability you possess, unless stated as passive, and even then, can use a prep to make it stronger. That's what preps, and sometimes interchangably charges, are for. To increase the power, or other stated /thing/ of an ability. No, but primarily it's what its used for. Preps on other things affect different stuff. You can prep a gunshot by making it more accurate, you can prep a sword swing to make it more powerful(often doesn't matter, as some folks will just swing full force anyway). Mostly things that normally don't need one. You don't need to prep a gun, but you can. Passive abilities as well. Skills, which I classify as different than magic. Basically anything, a sharpening focus, a complex movement, anything, so long as you note that it IS specifically being used to prepare an ability. For example: Kei'taro's preps are noted by his tattoos beginning to glow as specific to the ability. If Alphonse wanted to sharpen the edge of his blades using Chi, then they might glow light blue. You can, depending on what you need to do for a prep. If your prep requires you to focus intently for x amount of seconds, then you can't defend, or if you do, it cancels it. For me, it only cancels out the most recent of preps. So if I've already prepped twice, going for three, and you manage to stop me - I still have two preps, just not the third. This could, obviously, be different for others. The longer you prep, the strong your attack will be/the sharper your accuracy(if using a gun), etc., etc. If you use it with one prep, it won't be as strong as someone who casts it with two preps. Now, if you have it written that you can cast your magic without a prep, but it has a cost, be sure to factor that in as well. An interrupt is successful when it's logical, basically. If someone is trying to do too many actions in a post, you can interrupt between any one of them if possible. If I'm throwing 100 punches(Stated in a post), you can stop me at 2, 5, 43, 78, 99, whichever number you want if possible. If you can successfully do that, without metagaming, godmodding, or otherwise cheating, then you're successful. It basically will cancel out the entirety of my post after the point in which you interrupt me. So if you stop me at 43, then I have 57 punches that just aren't there anymore. All answers are based on my own interpretation of T1, [@Skallagrim], [@Melonhead], DJ, even [@Vordak] may have a different view on each question. [@Fallenreaper] [/quote] You've been actually been the most helpful to be honest. And main reason I ask stuff is to get different views on everything which can also help in telling who understands it and who doesn't correctly as well as the different ways to do it. Something that helps a lot for individuals not familiar with the system and getting the flavor of the arena battlers. It also makes it feel less like I'm being expected to swim or sink too.