I've been playing a lot of Warlock on PC and have been using the MB dagger kind of like this.
If I land F212 (generally after doing stuff like d3, crossup jf3) and confirm into F2122, I'll do this string:
F2122, 4 -> Trance, F2122, 4 -> MB Dagger (35%, or 36% if you have the space to jf3 after the Trance). This works anywhere on the screen, and even if you land this midscreen, all you need to do is take one step forward and you are in range to do whatever you want before they fall to the ground to continue pressure and potentially just put them into another loop of the above. Technically you can outright kill someone if you have the meter and they guess wrong twice in a row after the MB Daggers, but to do so you sort of have to commit to either B2 -> Trance or B324, so you're both gambling at that point.