First of all, replace his W with a passive aura such as a boost in speed or something along those lines. This will help make support blitz a bit stronger in that aspect.
Secondly, change his grab so that after you successfully grab someone you have can activate your Q again in the next 2 seconds to knock up that target.
This will 2 things to make him less ban worthy but actually viable
1. If he misses his Q he has no Cc other than his ult for 10+ seconds (Can't activate knock up without Q)
2. In team fights it will be a lot harder to Cc particular targets since he has to rocket grab them in the middle of the fight
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