Radiant Dragon

:[ 1 & 1] When this unit is placed on , if you have a vanguard with "Dragonic Blademaster" in its card name, you may pay the cost. If you do, choose up to one of your opponent's grade 1 or less rear-guards, retire it, and until end of turn, this unit gets +2000, and ":If your vanguard is blazing, this unit gets +2000 for each of your opponent's open .".