嵐の鎚、ミョルニル/Mjölnir, Storm Hammer

LegendaryArtifact - Equipment
When Mjölnir enters the battlefield, attach it to target legendary creature you control. <CR>
Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls. <CR>
Equip {4}

LegendaryArtifact - Equipment
When Mjölnir enters, attach it to target legendary creature you control. <CR>
Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls. <CR>
Equip {4}