- This card follows a five-stage evolution: "World Chalice Guardragon" > "Imduk the World Chalice Dragon" > "Crusadia Draco" > "Guardragon Andrake" > "World Chalice Guardragon Almarduke"/"World Legacy Guardragon Mardark".
- This card has the same Type, Level and Attribute as "World Chalice Guardragon Almarduke", but with reversed ATK and DEF stats.
- Both monsters seem to be the separated entities from "Guardragon Andrake".
- "Mardark" represents the 'wicked' side of the dragon.
- This card is the only "World Legacy" monster to not be a DARK Machine.