Potence Forging

At the beginning of your upkeep create a red equipment artifact token with Equip {1} and 'Equipped creature gets +2/+0'
Sacrifice an artifact: Create a treasure token.
Sacrifice 6 token artifacts: Create a legendary
token equipment artifact named Masterwork
with equip {1} and 'Equipped creature has +3/+3
First Strike and Prevent half the damage dealt to
this creature rounded up.'