During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the GY or reveal 1 Rock monster in your hand. During either player's turn, when a monster effect is activated: You can Tribute this card; negate the activation, and if you do, destroy that monster.
NM-Mint 1st Edition - $1.00
NM-Mint 1st Edition Non English - $1.00
Lightly Played 1st Edition - $0.90
Lightly Played 1st Edition Non English - $0.90
Moderately Played 1st Edition - $0.90
Moderately Played 1st Edition Non English - $0.90
Heavily Played 1st Edition - $0.80
Heavily Played 1st Edition Non English - $0.80
Damaged 1st Edition - $0.60
Damaged 1st Edition Non English - $0.60