Varamyr, Harmony's Muse

At the beginning of your upkeep, you may
choose a creature you control. That creature
gains hexproof and lifelink until end of turn.
Whenever you cast a spell that targets a creature
you control, you gain life equal to its mana cost
"In the cadence of compassion and the harmony of
hope, we find strength. Let our deeds be the verses,
and our unity the chorus."