Excalibur, Sword In The Lake

Equipped creature gets +2/+2 and has vigilance and double strike.
All of your other creatures get +1/+1 and have vigilance and double strike.
Equip {6}
When King Arthur pulled Caliburn from the stone, tales of him and the Knights of The Round Table traveled far and wide. They reached a certain lady of the lake, so when Arthur happened to pass by, she gifted him Excalibur, a sword wielded only by the worthy.