Flying "C" is a Common Effect Monster card from Yu-Gi-Oh! (2014 Mega-Tin Mega Pack, MP14). Current market price: $0.09.
Common
2014 Mega-Tin Mega Pack (MP14)
Card Text
When your opponent Normal or Special Summons a monster(s) (except during the Damage Step): You can Special Summon this card from your hand to the opponent's field in Defense Position. The controller of this card cannot Xyz Summon.
