Astroweaver, Nights Right

0: Create a 5/5 Black Dragon creature token with Flying and "When this creature dies, put 2 loyalty counters on Astroweaver, Nights Right."
-3: Deal 5 damage to any target. If a creature or planeswalker were to die this way, exile it instead.
-8: Search your library for up to 4 Dragon cards, then put them onto the battlefield. Then shuffle your library.