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]:Increase the upper limit of energy you can have from the [CONT] of the "Energy Generator" in your crest zone by 5. {Max Energy +5} [AUTO]:When this unit is placed on (VC), Energy Charge (3). Choose a card whose original card name is "Hellfire Dragon, Wirbel Dragon" from your soul or drop, and this unit gets all of that card's original abilities until end of fight. [ACT][VC][1/Turn]:COST [Energy Blast (10)], retire ALL of your opponent's rear-guards, and perform 1 of the following based on the number of cards in your opponent's damage zone. - 4 or less - Choose 1 of your opponent's vanguards, and deal it 1 damage. - 5 or more - This unit gets [Power]+10000 until end of turn.