Ghedowyn the Benevolent

Flying, hexproof; partner with Rohana the Veiled
Your Sideboard can include up to 33 cards of any
color with mana value 6 or less.
Wish — {u}{u}, Sacrifice X Treasures: Reveal a
card you own from outside the game with
converted mana cost X or less and put it
into your hand. Activate this ability only
if another commander you own is on the
battlefield under your control.