Crossbone (クロスボーン Kurosubōn) is an archetype made by Marie. Most of them are Level 4 or 7 Zombie-Type Monsters. They trigger effects when banishing other "Crossbone" Cards from your graveyard from Special Summoning to graveyard manipulation. They were the first deck to use "Genesis Monsters. Many have swarm effects, allowing easy Summoning of Rank 4 and 7 Monsters.
Crossbone centers around banishing a "Crossbone" or being banished from the Graveyard to obtain bonuses. Many Crossbone cards combo with Catalyst Monsters to trigger their effects. Many Crossbones Special Summon themselves alsos to trigger XYZ Summoning if a Catalyst is unavailable.
Crossbones are very Graveyard dependent, so if the opponent locks your graveyard, then Crossbone shuts down.