EDIT:
not bashing tos fanbase for not updating quickly
just saying that we cant rush things since from my previous reply iToS is not live yet so they cant put a skill simulator that is based on iToS. also i named it fanbase because thats what their site is called Tree of Savior Fan Base
like flash1 says we still dont know if the information that got datamined are official or what we will get on release.
the one who created the simulator dont want to waste time on unofficial patch notes so they have to wait for the official release then update it as soon as possible.
well you can just make a skill build and put on a note about the changes
ie. lv 15 hangmans knot is 15 sec on kToS so in iToS put it as 1 * .2 (15) = 8.5 sec
you can do that for now while we wait for a skill simulator.
EDIT2:
even im waiting for the skill simulator for iToS since i am going linker C2 - C3 since that was my build on icbt2. for now i can just build based on the kToS skill simulator for other class while i wait for the wizard to get their iToS version.