Death Seeker, Thanatos (SP)

[AUTO](RC):[Counter-Blast 1 & Retire this unit] When this unit's attack hits a vanguard, if you have a <Granblue> vanguard, you may pay the cost. If you do, choose a <Granblue> other than a card named "Death Seeker, Thanatos" from your drop zone, and call it to (RC).other than a card named "Death Seeker, Thanatos" from your drop zone,vanguard, you may pay the cost. If you do, choose a other than a card named "Death Seeker, Thanatos" from your drop zone, and call it to (RC).