Knightmare Mermaid (FLOD-EN043) [Flames of Destruction]

1 "Knightmare" monster, except "Knightmare Mermaid"
<br>If this card is Link Summoned: You can discard 1 card; Special Summon 1 "Knightmare" monster from your Deck, then if this card was co-linked when this effect was activated, you can draw 1 card. You can only use this effect of "Knightmare Mermaid" once per turn. Monsters on the field lose 1000 ATK/DEF, unless they are co-linked.