Phantom Knights' Spear

Continuous Spell

Each time your opponent activates a card or effect that targets a "The Phantom Knights" monster(s) you control, inflict 500 damage to your opponent immediately after it resolves. If a DARK monster you control would be destroyed by battle or an opponent's card effect, you can banish this card from your GY instead.

Rulings – Yugipedia

Printings:

Wing Raiders: WIRA-EN008 (Rare) - 2016-02-11
Legendary Hero Decks: LEHD-ENC14 (Common) - 2018-10-04

Prices:

Cardmarket: 0.14 €
TCGplayer: $ 0.12