Urza Planeswalker

+1: Put a 1/1 Thopter artifact creature into play with flying and "Sacrifice this creature, draw a card."
-2: Search your library for an artifact with a casting cost less than the number of counters on Urza Planeswalker. Put it in your hand.
-10: Destroy all creatures, artifacts, and enchantments. Choose 3 permanents destroyed in this way and put them into your hand.