Topic with arena tiers All the tiers are listed on the first page. The system had 10 tiers in the past, but for this particular Multiverse, only 8 were used, distributed between 3 power rankings: low, intermediate, high. The two former have 3-sub tiers, while the latter has only 2, the rest void, considered too opwerful for consistant gameplay.
If i were to choose, i'd suggest intermediate using characters, 2nd sub-tier, as their power requires less expirience to regulate and handle fairly, yet is still satisfying for those who fancy superhuman might.
Unfortunately, i cannot participate in a battle, as i leave after the 18th, going to the countryside, so i will have no acess to the internet. Will return after a week, but still, neither do i want others waiting on me, nor do i like to draw a character from a fight before solid victory or defeat. I will be up for a 1v1 though; wether it will be a relaxed, slow fight with long breaks, or a fast-paced blitz with 3 and more posts a day from each side - you decide, though the latter is prefferable: it will quickly get you acustomed with arena fighting, plus you just won't get the chance to be bored with it. ;D
Mind you, i, alas, have seen too often how players manage only under a dozen posts before abandoning the fight, so i do have a point there.