Dragon x15
top c from luxury shop (during 7 signs overenchanted were changed to homunkulus)
best: +12, broke at +13
one +11
two +10
few +9, +8 is easy to get (using logical method: buy for example 10 top c grade, have a lot of ewc, 200 or more, start enchanting: all to +3 first, after that +4, when something breaks, enchant that weapon with the biggest enchant and go on...)