Crocodile (001) [Super Pre-Release Starter Deck: The Seven Warlords of the Sea] V-BT05/SP06EN if you have a vanguard

if you have a vanguard with "Blue Deathster" in its card name

If it leaves the field for any reason

and"[AUTO](RC):At the end of the battle this unit attacked a vanguard

if its [Power] is greater than twice its base

and it gets [Power] + 100 Million until end of turn

Crocodile (001) [Super Pre-Release Starter Deck: The Seven Warlords of the Sea] V-BT05/SP06EN if you have a vanguardSet Name: Super Pre Release Starter Deck: The Seven Warlords of the Sea Card Number: ST03 001 Release Date: 2022 12 02 Rarity: Leader Card Type: Leader Power: 5000 [Activate: Main] [Once Per Turn] DON!! 4 (You may return the specified number of DON!! cards from your field to your DON!! deck.) : Return up to 1 Character with a cost of 5 or less to the owner's hand.