Does anyone know what the highest level enchant is and what the success rate on it?

dramdrum

Like, if you combine 4 level 1s you get a level 2 with 95% rate.
If you combine 4 level 2s you get a level 3 with 90% success.

How high can it go and whats the rate on the final one, anyone know?

stereoblindx

1% with the option to purchase something from the cash shop that guarantees success