The Phantom Knights of Shadow Veil

Normal Trap

Target 1 face-up monster you control; it gains 300 ATK/DEF. When an opponent's monster declares a direct attack while this card is in your GY: Special Summon this card in Defense Position as a Normal Monster (Warrior/DARK/Level 4/ATK 0/DEF 300). (This card is NOT treated as a Trap.) If Summoned this way, banish this card when it leaves the field.

Rulings – Yugipedia

Printings:

The New Challengers: NECH-EN072 (Common) - 2014-11-06
Star Pack ARC-V: SP15-EN048 (Common) - 2015-06-12
Star Pack ARC-V: SP15-EN048 (Shatterfoil Rare) - 2015-06-12
2015 Mega-Tin Mega Pack: MP15-EN181 (Common) - 2015-09-17
Wing Raiders: WIRA-EN012 (Common) - 2016-02-11
Legendary Hero Decks: LEHD-ENC24 (Common) - 2018-10-04

Prices:

Cardmarket: 0.08 €
TCGplayer: $ 0.07