Each turn, 1 Level 5 or higher "Metaphys" monster you Normal Summon can be Summoned without Tributing, but banish it during the End Phase of the next turn. Your opponent cannot activate cards or effects in response to your "Metaphys" monsters' effect activations.
Lets you Normal Summon high-leveled Metaphys monsters without tribute.
Protects your Metaphys monsters while they activate their effects.
Metaphys monsters Normal Summoned by this effect only stay on the field temporarily.
Metaphys monsters are all high-leveled so Metaphys Factor gives you an easy way of summoning them. The banishing will help you get their effects off. Metaphys Daedalus lets you banish a Metaphys monster from your deck. Most of the time, the best card to banish would be Metaphys Tyrant Dragon to activate it's effect. Metaphys Tyrant Dragon is a key card to banish when using a Metaphys Deck because it lets you Special Summon a Metaphys monster from your hand and activate it's powerful first effect. Metaphys Nephthys lets you search any Metaphys card from your deck, not just monsters, so you can use it to search out Metaphys Factor.