Here's some information about it:
Raviel, Lord of Phantasms
* Type: Effect Monster
* Attribute: DARK
* Level: 8
* ATK: 3000
* DEF: 2500
Effect:
* "If this card is Normal Summoned or Special Summoned: You can banish 1 "Phantom of Chaos" from your Graveyard; this card gains 1000 ATK for each banished "Phantom of Chaos" in your Graveyard. This card cannot be destroyed by battle. Once per turn, you can target 1 monster your opponent controls; inflict damage to your opponent equal to that monster's ATK. If this card is destroyed, banish 1 "Phantom of Chaos" from your Graveyard."
Key Points:
* Powerful Attack: Raviel has a high base ATK of 3000 and can gain even more ATK based on the number of "Phantom of Chaos" banished from your graveyard.
* Battle Immunity: It cannot be destroyed by battle, making it very resilient.
* Opponent Monster Damage: Its effect allows you to damage your opponent directly by targeting their monster's ATK.
* "Phantom of Chaos" Synergies: Raviel works best with cards that involve banishing "Phantom of Chaos" from the graveyard, such as "Chaos Emperor Dragon - Envoy of the End" and "The Phantom Knights of Break Sword".
Overall:
Raviel, Lord of Phantasms, is a very powerful card that can be a key player in any deck that utilizes "Phantom of Chaos" and chaos-related strategies. Its high attack, battle immunity, and direct damage potential make it a formidable threat on the field.