What Ghost type move deals the most damage?

Last Respects caps at 5050 BP after 100 teammates have fainted in the same battle. Other than this, three Z-Moves occupy the top three slots:

1. Menacing Moonraze Maelstrom (200 BP)
2. Soul-Stealing 7-Star Strike (195 BP)
3. Sinister Arrow Raid (180 BP)

Limiting your question to more conventional moves still yields Shadow Force at 120 BP as the strongest Ghost type move.