Nenya, Ring of Adament

{2}: Equipped creature gains hexproof until end of turn.
At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it's blue.
Equip {1}
This is Nenya, the Ring of Adamant, and I am its Keeper. This task was appointed to you, and if you do not find a way, no one will.