I've started playing clock recently, with good success. Just wanted some input from experienced clock players.

Is bottle your only source of mana gain? I've run into some issues, especially trying to use mek on clock. By the time I need it I'm usually oom. But I look at a lot of popular builds with very little items for mana gain other than bottle.

Also, are bottle, aghs, and force staff mainstay for you? And what other items do you consider mainstay, or past that is it pretty much situational?

Thanks in advance.