Card Tips:Ally of Justice Catastor
- This card works well with "DNA Transplant". Once all monsters on the field are a single Attribute (other than DARK), no monster can destroy Catastor by battle.
- This card's effect can be countered with "Stardust Dragon" or an equipped "Power Tool Dragon".
- Use Staunch Defender so you can destroy all of the opponent's non-DARK Monsters.
- "Junk Synchron" can easily Summon this monster. So can Deep Sea Diva.
- Equip this card with "Twin Swords of Flashing Light - Tryce" to easily destroy two monsters your opponent controls.
- This card is an excellent way to prevent the opponent from using "Honest", since the opponent's monster is destroyed before damage calculation.
- When using this card, beware of high-ATK DARK monsters, such as Cosmo Queen, Jinzo, Dark Armed Dragon, Red-Eyes (except Red-Eyes Wyvern and Red-Eyes B. Chick) or Summoned Skull, and Caius the Shadow Monarch.
- This card is very easy to Summon using "Alien Ammonite" to Special Summon a Level 4 "Alien" monster from your Graveyard, then Tuning for "Ally of Justice Catastor" instead of "Cosmic Fortress Gol'Gar".
- If you are running this in a "Blackwing" Deck, the easiest way to Synchro Summon this card is to Normal Summon "Blackwing - Shura the Blue Flame", attack and destroy a monster and use it's effect to Special Summon "Blackwing - Vayu the Emblem of Honor", and then Tune for "Ally of Justice Catastor", since the effect of "Vayu" would be negated. You can also Summon "Blackwing - Blizzard the Far North" and Special Summon "Blackwing - Kalut the Moon Shadow" or "Blackwing - Ghibli the Searing Wind.
- If this is the only monster you have on your side of the field and your opponent doesn't have any high-attack DARK monsters, you can use "Battle Mania" to force your opponent to clear their field (unless they use a card that allows them to remove "Ally of Justice Catastor" from your side of the field).
- If your opponent controls a monster and you control no monsters, you can easily synchro summon this card with "T.G. Striker" and "T.G. Warwolf" without performing a Normal Summon.