Card Rulings:Evilswarm Bahamut
- If you take control of a monster with this effect, it remains under your control as long as it remains on the field.
- If during the effect's resolution this card is flipped face-down or it leaves the field, you still take control of the targeted monster.
- If during the effect's resolution the targeted monster is flipped face-down, you still take control of it.
- Konami OCG FAQ: Effect Monster > Evilswarm Bahamut