Assylen, Natural Crystal (WXDi-D01-016) [Diva Debut Deck D01: Ancient Surprise]

[Auto]: Whenever this SIGNI attacks, if its power is 15000 or more, your opponent discards a card. If its power is 20000 or more, your opponent instead discards a card at random. [Life Burst]: Down target SIGNI on your opponent's field and freeze it. Draw a card. (Frozen SIGNI do not up during its next up phase.)