If you Normal or Special Summon a "Time Thief" monster(s), except "Time Thief Adjuster" (except during the Damage Step): You can Special Summon this card from your hand. If this card is Normal or Special Summoned: You can send 1 "Time Thief" card from your Deck to the GY, except "Time Thief Adjuster". You can only use 1 "Time Thief Adjuster" effect per turn, and only once that turn.