2 Level 4 monsters

During the Standby Phase: You can detach 1 material from this card, then target 1 Time Thief monster in your GY, except Time Thief Perpetua ; Special Summon that monster. (Quick Effect): You can target 1 other Xyz Monster you control; attach 1 Time Thief card from your Deck to it as material. You can only use each effect of Time Thief Perpetua once per turn.