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 - $0.55
Lightly Played Unlimited - $0.50
Moderately Played Unlimited - $0.45
Heavily Played Unlimited - $0.40
Damaged Unlimited - $0.30