Cass grenade is just as cheesy as stun ever was

I think his current matchup is Reaper favored if anything, though it depends on the map.

I know, but it could do it to a smaller extent while also him having a strong FTH to counter close ranged encounters wich usually happens to be mobile heroes (and Tanks).

Something like this:

Nowadays i think the spread is a bit too small maybe, something like 3-4 with 10-20m falloff is prolly more correct.