lots of questions

i have a 14-20 fiery dragon sword with 10% dmg while enchanted.im trying to get a max dmg 1 like that but it costs too much.should i just keep what i got and get it customized or is it worth it for that extra 2 dmg?im going for keeping the one i got.
is there much difference bettween knights armor and plate armor?cause i like the look of knights better but dont want to get it if it is alot worse than plate.would it make much of difference if i got knights?
and is the ascension like the searing?where u cant go back?i need some info on the ascension and what u have to do to get it.i know you have to fite a copy of u but thats it.

well thx for reading it i know it is long
and thx to any1 who answers some or all of my questions

Seems like you're using one breath for an extended period of time. Go with your fiery sword and customize it, you won't really care about the 2 max and 1 min damage until you're level 20 and richer. Knights has minus 2 damage, but you only need 1 piece to get the damage reduction bonus. You should get 1 piece of knights and the rest platemail, or the rest gladiators if you want energy.

thx but gladiators has the same def as knights and how i get my energy is put my flame artifact on instead of shield,cast all my spells then put shield back on.so im not really in need of energy.i think ill get knights because it is easier to get the supplies.and i still need some info on ascension