A Cowboy's Best Friend

Equipped creature gets +1/+1 and Trample, double strike and deathtouch.
When equipped creature is sent to the graveyard you must also put A Cowboy's Best Friend into the graveyard.
Gravedig- {5}, Exile a cowboy(You may return A Cowboy's Best Friend from the graveyard to your hand.)
Equip {3}