Rauru, Sage of Light

You can't lose more than 5 life each turn.
Whenever a player casts a spell, you gain 1 life.
As long as your devotion to white is greater than
5, if a permanent would be destroyed under your control, shuffle it into your library instead.
"Protecting the Triforce in the Temple of Light, Rauru became the guardian of the power of the gods."
—Hyrule Historia