Sphinx of the Guildpact 7
Artifact Creature - Sphinx
Sphinx of the Guildpact is all colors.
Hexproof from monocolored (This creature can't be the target of monocolored spells or abilities your opponents control.)
Might just be off the mark here, but is this shops playable? The 6 spot gives us Wurmcoil and Hellkite, and 7 is just a lot of mana in general. However, this blanks plow, by force, grudge, bounce spells, etc., etc. A 5/5 flyer for 7 isn't super hot, but a 5/5 flyer on the battlefield is better than a 6/6 wurm in exile or a 5/5 hellkite in the graveyard.