I was just messing with corner trait combos that end in the vortex and damn I love what I've found.
TA after mb freeze in the corner:
f3, 111 xx frozen daggers. 111 xx frozen daggers, 111 xx slide, u3 , f113 xx freeze mb, j2, f113 - 53%
b1u3, f113 xx frozen daggers, 111 xx frozen daggers, 111 xx slide, u3 , f113 xx freeze mb, j2 , f113 - 56%
Daggers must be done close to the ground so both of them hit, even if 1 whiffs it doesn't work. The combo builds about 1 bar of meter, not to mention it looks awesome! It's easier on bigger characters, on smaller ones is tough, but still doable.