Orphan of Kos

Indestructible if you have 7 or more cards in hand. At the beginning of combat, put a Flying counter on Orphan of Kos for each creature with Flying. Repeat this process for each keyword present among creatures on the battlefield. If Orphan of Kos has three or more counters of the same keyword, it gains that keyword.
{b}: Remove a counter from Orphan of Kos, draw a card.