Hellfire Dragon Emperor, Wirbel König

[CONT]:During this fight, this card is also regarded as "Hellfire Dragon, Wirbel Dragon", and can only be ridden from a grade 3 with "Wirbel" in its card name. [CONT](VC):The maximum energy you may have in the [CONT] ability of the "Energy Generator" in your crest zone gets +5. [AUTO]:When this unit is placed on (VC), Energy Charge (3). Choose a card with original card name" Hellfire Dragon, Wirbel Dragon" from your soul or drop, and until end of this fight, this unit gets all of the original abilities of that card. [ACT](VC)[Once]:Energy Blast (10), retire all of your opponent's rear-guards, and perform one of the following according to the number of cards in your opponent's damage zone. •Four or less - Choose one of your opponent's vanguard, and deal one damage. •Five or more - This unit gets [Power]+10000 until end of turn