Besides the fact that visions jumps, so assuming you kill your primary target (which you should) it will jump to another, meaning it will always be in the team fight. With cdr it's easy to have 2-3 instances of visions jumping around in a team fight.

Visions has a shorter cool down end game than Call of the void does. Q also has the longest range and is the only one that doesn't cast/hit instantly. You can land it first, it has a longer cooldown than malefic (at max level). Putting Visions on enemies at the end of the fight allows your dot to run through your whole ultimate and after if they survive and flash away. I put ignite in the sequence before my ultimate because in many fights I realize I can kill champions without my ultimate, allowing me to save it for another champion that I can engage, or perhaps one who comes in and attacks me.

especialy when it should be E Q W R F ;D putting visions in the end of sequence = longer cd = won't be able to put out many of em in a fight

Q + W + E + F + R ???

You do know that you can channel ignite during nether grasp right?

runes messed up...
mejai's as an option...
not taking any defense in masteries with those runes...
walls of text, no bb coding...