Wise of the Legion

Flying, hexproof, legion (For each creature with
legion, creatures you control that share a type with a
legion gain another legion level:
I. Creatures of this type cost you {1} less to cast.
II. Creatures of this type you control have +1/+1.
III. Whenever a creature of this type enters the battlefield under your control, draw a card.)
"Knowledge is the light that shines through the night."