Thirsting Axe

Artifact — Equipment - (uncommon)

Equipped creature gets +4/+0.
At the beginning of your end step, if equipped creature didn't deal combat damage to a creature this turn, sacrifice it.
Equip 

Sometimes the weapon wields the bearer.

Price

cardmarket 0.04

tcgplayer 0.12

cardsphere 0.19

cardkingdom 0.49