C D vs Vainglory7

On the first half of T6

My opp had a Camouflaged Foe on field as I started my turn.
I activated Aramia's ability and brought in a Living Ice Wall, then activated it.
I summoned a Sorcerer of Endia.
My opp's Camouflaged Foe triggered and hit my Sorcerer of Endia.


I feel like this should not have happened due to me having a protector up.
If this is not a bug, please point me to a relevant ruling.

Thanks