[When Digivolving] Delete of of your opponent s Digimon with 4000 DP or less. If no opponent s Digimon was deleted by this effect, you may digivolve this Digimon into a level 6 Digimon card with [Gallantmon] in its name in your hand for the digivolution cost. When this Digimon would digivolve by this effect, reduce the digivolution cost by 1.