Crimson Call

Add 1 Level 4 or lower Fiend monster from your GY to your hand, or if you control "Red Dragon Archfiend" or a Synchro Monster that mentions it, you can add the monster from your Deck instead. If your "/Assault Mode" monster or "Red Dragon Archfiend" attacks, at the end of the Damage Step: You can banish this card from your GY; that monster can make a second attack in a row. You can only activate 1 "Crimson Call" per turn.