Nimbus, the Gluttonous

Changeling, Soulbond (You may have this creature paired with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as Nimbus, the Gluttonous is paired, each of those creatures has "When this creature attacks, create a food token."
Sacrifice a food token: All creatures you control get +1/+0 and vigilance until the end of this turn.