Strait Scale Dragon

:If you have a vanguard with "Argo Siren" in its card name or only Aqua Force for its clan, this card gets all of the following. ・:When this unit is placed on , [ 3 & discard an order card from hand], draw two cards, and if your opponent's vanguard is grade 3 or greater, this unit gets +5000 until end of turn. ・:When this unit attacks or by a card effect, if your vanguard is grade 3 or greater, this unit gets +5000 until end of turn.