Destroy 1 monster on the field with an A-Counter. Then, you can Special Summon 1 Level 4 "Alien" monster from your Deck. Destroy it during the End Phase.
Near Mint / Lightly Played Unlimited - $1.00
Moderately Played Unlimited - $1.00
Heavily Played Unlimited - $1.00
Damaged Unlimited - $0.50
Near Mint / Lightly Played 1st Edition - $1.00
Moderately Played 1st Edition - $1.00
Heavily Played 1st Edition - $1.00
Damaged 1st Edition - $0.50