Nicol Bolas, Omniscient

: as long as Nicol Bolas, Omniscient is on the battlefield or in the command zone, dragon spells you cast cost 1 less to cast.
+2: Put a Dragon card from your hand onto the battlefield, it gains haste, sacrifice it at the beginning of the next end step
-12: Put a dragon card from your hand onto the battlefield, if you do Draw 3 cards and repeat the process.