You can activate "Magibullet" Spells/Traps from your hand during either player's turn. If a Spell/Trap is activated in the same column as this card: You can Special Summon 1 Level 4 or lower "Magibullet" monster from your Deck in Defense Position, except "Magical Musketeer Starfire". You can only use this effect of "Magical Musketeer Starfire" once per turn.