Majespecter Sonics

Quick-Play Spell

Target 1 "Majespecter" monster you control; until the end of this turn, its ATK and DEF become double its current ATK and DEF, also any battle damage it inflicts to your opponent is halved.

Rulings – Yugipedia

Printings:

Breakers of Shadow: BOSH-EN064 (Common) - 2016-01-14
2016 Mega-Tin Mega Pack: MP16-EN219 (Common) - 2016-09-01

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.10