Raggaden, Burred Colossus

When Raggaden, Burred Colossus enters the battlefield, sacrifice X amount of creatures. Raggaden, Burred Colossus power and toughness are equal to the amount of creatures sacrificed in this way.
Raggaden, Burred Colossus attacks every turn if able
Other creatures you control gain defender.
"We lost many fine young men unearthing the beast, the sacrifice was more than worth it."- Avak, Head Engineer