Berserk Dragon

:If you rode this unit from hand, this cost is lost. When this unit is placed on or , and you have a vanguard with a Kai icon, [] or , and perform one of the following. If your vanguard is grade 3 or greater, this unit gets +5000 until end of turn. ・Draw a card. ・Choose one of your opponent's rear-guards, and retire it. []:During your turn, if you have a grade 3 or greater vanguard with a Kai icon, this unit gets +5000. If your opponent's vanguard is grade 3 or greater, it gets +10000 instead of +5000.