Masamichi Yaga

Reach, Toxic 2

When Masamichi Yaga enters the battlefield, create
X Cursed energy artifact tokens with "{t}: sacrifice
this token, add one mana of any color to your mana
pool."

When Masamichi Yaga attacks, create a tapped
Cursed energy token with " {t}: sacrifice this
token, add one mana of any color to your mana pool."