Brainwashing Beam

Continuous Trap

Select 1 monster with at least 1 A-Counter on your opponent's side of the field and take control of that monster. During each of your End Phases, remove 1 A-Counter from that controlled monster. If all A-Counters are removed from that monster, or that monster is destroyed, destroy this card.

Rulings – Yugipedia

Printings:

Power of the Duelist: POTD-EN060 (Common) - 2006-08-16

Prices:

Cardmarket: 0.10 €
TCGplayer: $ 0.11