5 triggers in the Servers category.
Server Joined
guild_create
Triggers when your bot joins a new server.
Server Update
guild_update
Triggers when a server is updated.
Server Left
guild_delete
Triggers when your bot leaves or is removed from a server.
Webhook Update
webhook_update
Triggers when a webhook is updated.
Audit Log Entry Created
audit_log_entry_created
Triggers when an audit log entry is created.