Tumburu, Celestial Musician

Whenever you cast or copy an instant or sorcery
spell, scry 1.
If that spell's mana value is 5 or greater, put 3
+1/+1 counters on any creature. If that spell's
mana value is 10 or greater, Tumburu, Celestial Musician deals 10 damage to an opponent chosen
at random.