Poison Chain

Continuous Spell

During the End Phase of your turn, if you did not attack, you can make your opponent send cards equal to the number of face-up "Iron Chain" monsters you control from the top of their Deck to the Graveyard.

Rulings – Yugipedia

Printings:

Crossroads of Chaos: CSOC-EN053 (Common) - 2008-11-18

Prices:

Cardmarket: 0.06 €
TCGplayer: $ 0.16