The First Mythisch, Wolfszahn Roztnir : DZ Booster Set 07: Moon Fangs & Cerulean Blaze

[AUTO]:When this unit is placed on (RC), if you have a grade 3 or greater vanguard with Veissrugr in its card name, until end of turn, when this unit would attack, choose one of your opponent's front row (RC), and it battles your opponent's vanguard and all of the units on the chosen (RC).[AUTO](RC):When this unit attacks, if your order zone has a Moon Gate, this unit gets [Power] +5000 until end of turn, [COST][Counter-Blast 1 or Energy-Blast 3], and draw a card.