Impale Horn Dragon

:During the battle this unit boosted, if you have a grade 3 or greater vanguard with "Varga" in its card name, this unit gets +5000. :When this unit boosts a grade 3 or greater vanguard with "Varga" in its card name, this unit gets +2000 until end of that battle, at the end of that battle, [ 1 & retire this unit], and draw a card.