Examples:
* "Chaos Emperor Dragon - Envoy of the End": This powerful Fusion Monster is immune to Spell and Trap effects, making it very hard to remove from the field. However, it's still vulnerable to monster effects.
* "Black Luster Soldier - Envoy of the Beginning": This iconic Fusion Monster has an effect that prevents it from being targeted by card effects, making it immune to many Spell and Trap effects. However, it can still be destroyed by monster effects, like battle.
* "Cyber Dragon Infinity": This powerful Fusion Monster is immune to all card effects while it is in attack position. It's a very strong monster, but it can be destroyed by battle or removed from the field if it's in defense position.
Important Note: While these monsters have specific immunities, they are still susceptible to other forms of card effects and gameplay.
Here's what you should consider:
* Monster Effects: Some monsters can destroy other monsters without targeting them (e.g., "Raigeki").
* Battle: Monsters can still be destroyed in battle, even if they're immune to card effects.
* Other Card Effects: Even if a monster is immune to Spell and Trap effects, there are many other card effects that can affect them, such as targeting their controller (e.g., "Mirror Force") or altering the game state in a way that benefits your opponent.
Ultimately, no Fusion Monster is truly "unaffected" by all other cards. However, there are many Fusion Monsters with powerful effects that can make them very difficult to deal with.