Activate by sending 1 face-up "Infinite Machine" in your Spell & Trap Zone to the GY. Cannot be destroyed by an opponent's card effect. Neither player can target "Timelord" monsters you control with card effects, also they cannot be returned to the Deck. Once per turn, if you control no monsters: You can Special Summon "Timelord" monsters with different names, up to 1 each from your hand, Deck, and/or GY, ignoring the Summoning conditions.