Mercenary

Haste, Vigilance, Partner With Survivor.

When mercenary enters or attacks create a Colorless Barrel Artifact token and put an exposed counter on target creature your opponents control.

{1}{u/b},{t}: Mercenary fights target exposed creature. If mercenary wins the fight, exile it then return it to the battlefield under its owners control.

Mercenary gets +1/+1 for each item you control.