v.148 - Grand Athenaeum Update Notes

Also, do the letters mean you are supposed to be able press the letters on your keyboard? that doesn't work for me, it is just a clickfest with the bosses slow snail walk.

I have to hold a letter for 2-10 seconds before it finally casts the skill. I've seen people being able to rapidly cast skills, so they either have ridiculously good internet or live very close to Nexon America's servers.