Dark Valkyria Beat From Nico Video

A Beatdown deck using Dark Valkyria to destroy opponent monsters.

Source : http://www.nicovideo.jp/watch/sm9206574

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect:
● One time only, you can place 1 Spell Counter on this card. This card gains 300 ATK for each Spell Counter on it. You can remove 1 Spell Counter from this card to destroy 1 monster on the field.

This card cannot be Normal Summoned or Set. This card can only be Special Summoned, by having 5 or more DARK monsters in your Graveyard while you control no monsters. Once per turn, you can remove from play 1 DARK monster in your Graveyard to Special Summon 1 DARK monster from your Graveyard.

beatdown