Dragorg, Dragon Priest

: Dragon spells you cast cost up to (X) less to cast. Dragorg, Dragon Priest can be your commander.
: Whenever you cast a dragon spell, put a loyalty counter on Dragorg. Then, move any number of loyalty counters on Dragorg to another planeswalker.
-3: Scry 2. Reveal the top 5 cards of your library. You may put a dragon card from among them into your hand. Shuffle the rest into your library.