NessMysterion no Ryuukan / Dracrown of Mysterion
Light Spellcaster / Fusion / Effect
LV8 3000/1500
1 Spellcaster monster + 1 Dragon monster
You can only use this card name's (2) effect once per turn.
Cannot be used as a Fusion Material.
(1) Loses 100 ATK for each of your banished cards.
(2) If a monster(s) is Special Summoned by its own activated monster effect, or by the activated effect of a monster with the same original Type: You can target of 1 of those Summoned monsters; banish it and all monsters on the field with the same original Type.
Source.