Erasmus Shelby, the Duke

Kicker {x}. X can't be 0. (You may pay an
additional {x} as you cast this spell.)
Deathtouch, flash
When Erasmus Shelby, the Duke enters the battlefield, if it was kicked, gain control of target artifact with mana value X or less.
Shelby family (You can have two commanders
if both have shelby family.)