Mjšlnir, Storm Hammer (Assassin's Creed)

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