Legion, the Horde

Eminence - Permanents, spells and cards you own
that aren't in play gain Changeling.
If {w} was spent to cast Legion than creatures you control have Vigilance, the same is true for {u} and Flying, {b} and Deathtouch, {r} and First Strike, {g} and Trample, {c} and Hexproof.
Creatures you control get +X/+X.

The desires of many given a single physical form.