This monster can only be Ritual Summoned with the Ritual Spell Card, "Turtle Oath". You must also Tribute monsters whose total Level Stars equal 8 or more from the field or your hand.
Near Mint Unlimited - $3.30
Lightly Played Unlimited - $3.10
Moderately Played Unlimited - $2.80
Heavily Played Unlimited - $2.50
Damaged Unlimited - $2.30