About the spell shields.
I was wondering if Zilean's (Q) Time Bomb was supposed to or not supposed to proc off of Sivir's (E) Spell Shield and Nocturne's (W) Shroud of Darkness? I was just in an ARAM with my team having a Sivir and Nocturne with an enemy Zilean and we both popped our shields when the bomb was on us and it popped but never got blocked when the shield came up. Is this a bug or is this supposed to happen because it is considered a spell :/ Just want some clarification here. Thank you.
P.S. I honestly don't know what community this would go under :o Sorry if this is the wrong one.