Yu-Gi-Oh!More games soon
True King of All CalamitiesForbidden

True King of All Calamities

Xyz Effect Monster

Card text

2+ Level 9 monsters Once per turn (Quick Effect): You can detach 1 material from this card and declare 1 Attribute; this turn, all face-up monsters on the field become that Attribute, also all monsters in your opponent's possession with that Attribute cannot activate their effects or attack. Monsters that "True Draco" and "True King" monsters in your hand would destroy with their effects can be chosen from your opponent's field.

Attribute
DARK
Type
Wyrm
Rank
9
ATK
3000
DEF
3000

Archetype: True Draco

Explained

What it does

A Rank 9 Xyz. Once per turn, detach 1 and declare an Attribute; all face-up monsters become it and your opponent's monsters with it can't activate effects or attack this turn. True Draco and True King monsters in your hand can also destroy your opponent's monsters with their effects.

Play it when

It can't be used in Advanced Format. It's Forbidden in the TCG.

Common mistakes
  • Using it in the Damage Step. You can't.

How it works

Status: Forbidden in the TCG (Sept 21, 2026 list), so it can’t be used in Advanced Format.

Materials: 2 or more Level 9 monsters.

  • Quick Effect (once per turn): Detach 1 material and declare 1 Attribute. This turn, all face-up monsters on the field become that Attribute, and all monsters your opponent has with that Attribute can’t activate their effects or attack.
  • Continuous: Monsters that “True Draco” and “True King” monsters in your hand would destroy with their effects can be chosen from your opponent’s field.

Rulings in plain English

Attribute effect: A Quick Effect on the field. It doesn’t target. Detaching and declaring the Attribute happen when you activate it. Not in the Damage Step.

True Draco Apocalypse, True Draco Heritage, True King’s Return.

Card page