(1) You can substitute this card for any 1 Fusion-Material Monster. When you do this, the other Fusion-Material Monster(s) must be the correct one(s).
The (1) effect does not have any classification. It is not an Ignition, Trigger, Quick, or Continuous Effect.
This effect does not target.
Using Mystical Sheep #1 as a Fusion Material does not start a Chain Link.
This effect You can substitute this card for any 1 Fusion Material monster of a monster like King of the Swamp is not applied while the monster is banished. If you activate Parallel World Fusion, then you cannot use it as a substitute for a Fusion Material.
The effect You can substitute this card for any 1 Fusion Material Monster of a monster like King of the Swamp or Goddess with the Third Eye is not applied while the monster is in the Deck.
When Special Summoning Chimeratech Fortress Dragon or XYZ-Dragon Cannon, you cannot send to the GY a monster like The Dark – Hex-Sealed Fusion as a substitute for a Fusion Material.