My thought's on how to Fix WW with Dev Enchantment
The fix seems really simple to me, but I'll explain in further detail after stateing my fix.
Fix
Change Warwick's Ult. Instead of it apply 5 hits, Change it so it does 1 hit for the same damage ect... that it would deal currently with 5 Hits.
Details of why this will work
The whole problem seems to be with the on hit effects so by makeing it 1 hit instead of 5, only 1 on hit effect will be activated, thus fixing the problem.
I believe this to be the best fix, will edit later with the math got a match coming up, but this is the best fix because changing the item will make other jugs suffer that benifited from the item..