You can pay 1000 LP, then target 1 face-up Spell/Trap Card on the field; destroy it. You can only activate this effect of "Unending Nightmare" once per Chain.
NM-Mint 1st Edition - $1.00
Lightly Played 1st Edition - $0.90
Moderately Played 1st Edition - $0.80
Heavily Played 1st Edition - $0.70
Damaged 1st Edition - $0.50
NM-Mint 1st Edition Non English - $1.00
Lightly Played 1st Edition Non English - $0.90
Moderately Played 1st Edition Non English - $0.80
Heavily Played 1st Edition Non English - $0.70
Damaged 1st Edition Non English - $0.50