Base Card Pool
Legendary Monster
Alien Shocktrooper
Monsters
Worm King
Worm Xex
Worm Jetelikpse
Worm Yagan
Worm Cartaros
Worm Tentacles
Worm Apocalypse
Reptilianne Gardna
Reptilianne Gorgon
Alien Dog
Alien Warrior
Alien Telepath
Alien Overlord
Alien Grey
Alien Stealthbuster
Cosmic Horror Gangi'el
Spawn Alligator
Extra Deck
Worm Zero
King of the Feral Imps
Polymerization
"A" Cell Breeding Device
Future Fusion
Ogdoadic Daybreak
Embodiment of Apophis
W Nebula Meteorite
Corruption Cells
If a Reptile monster battles an opponent's monster, place 1 A-Counter on that opponent's monster at the end of the Damage Step if it was not destroyed. (Once per turn): If an A-Counter(s) is removed, you can add 1 Reptile monster from your Deck to your hand with a level less than or equal to the number of A-Counters removed.
Legendary Quest
If a monster with an A-Counter(s) is destroyed, you can Special Summon "Alien Shocktrooper" from your hand and place 1 A-Counter on each face-up monster on the field.
Legendary Relic
If "Alien Shocktrooper" would be destroyed, you can remove 3 A-Counters from the field instead. (Once per Duel): If you control "Alien Shocktrooper", this turn, any monster with an A-Counter that battles a Reptile monster, loses 300 ATK/DEF for each A-Counter during damage calculation only. If "Alien Shocktrooper" is destroyed, you can place 4 A-Counters on monsters your opponent controls, distributed as you wish.
Tip Skills
When you place an “A” Counter(s) by a card effect, place another. This Skill's name is always treated as "Allen and Adrien’s Alienation Immigration Legalization Nation Hydration Lactation Station Socialization Vacation resulting in Hospitalization"
Reptile monsters in your possession are all also treated as “Alien” monsters.