Venat, Hear of Hydaelyn (FIN #039)

Whenever you cast a legendary spell, draw a card. This ability triggers only once each turn.

Hero’s Sundering — {7}, {T}: Exile target nonland permanent. Transform Venat. Activate only as a sorcery.

Indestructible

Blessing of Light — At the beginning of combat on your turn, put a +1/+1 counter on another target creature you control. Until your next turn, it gains indestructible. If that creature is legendary, draw a card.