Blue Storm Supreme Dragon, Glory Maelstrom

(This ability is active if you have five or more damage): 1 When this unit attacks a vanguard, you may pay the cost. If you do, until end of that battle, this unit gets +5000, and your opponent cannot call grade 1 or greater units to from his or her hand. :If you have a card named "Blue Storm Dragon, Maelstrom" in your soul, this unit gets +2000. /:Lord (If you have a unit without a same clan as this unit, this unit cannot attack)