Blue Flight Dragon, Trans-core Dragon

(This ability is active if you have four or more damage):When an Aqua Force rides this unit, choose your vanguard, and until end of turn, that unit gets +10000 and ":When this unit attacks a vanguard, your opponent may choose a card from his or her hand, and discard it. If he or she does not, until end of that battle, this unit gets +1 and your opponent cannot call units to from hand.". :When this unit attacks a vanguard, this unit gets +2000 until end of that battle. /:Lord (If you have a unit without a same clan as this unit, this unit cannot attack)