Skewer of Courage

Target creature you control gets +1/+0 and gains firststrike and goldsword (Whenever this creature deals combat damage to a player, create a colorless artifact token named Gold with "Sacrifice this artifact: Add one mana of any color to your mana pool.") until end of turn.
In battle you forget all of the lessons you've learned. You just do what it takes to survive. This mentality is what causes a well planned out battle to erupt into a wild frenzy of chaos.