User blog comment:Telaruhn/Dolomitak, The Bone Shaman (REMAKE)/@comment-4842032-20120330225240

I recommend changing the mechanics on E. The way you have it worked, the overall CC duration for the spell actually decreases when you level it. If I was using this spell, I might not want to level it, even if I had no other options.

Without knowing the original intent behind E besides CC, i can't give exact feedback, but there are a few options I can think of to suggest:

1. Have it be more like Lux's AoE spell, in that the caster can manually activate the spell. This would have to be done with a minimum and maximum duration stat for the initial part of the spell, like starting with min 2.5 and max 2.5, and then slowly widening the gap as the spell levels.

-- this would be a very difficult thing to do consistently, but it seems to stick closely to what you have already outlined while still improving the spell with leveling.

2. Have the slow portion scale with leveling, so that the lessened duration still provides more total CC.