Nathairy, the Legendary Sage

Ward - Choose two permanents you own that are
non-legendary. They become legendary.
You may cast Nathairy for {w}{u}{b}{r}{g} if you control two legendary enchantments.
If Nathairy is your commander, you may have a
non-Shrine, non-Background legendary enchantment as your other commander.
Whenever you cast a legendary enchantment, draw two cards unless a target opponent gives you a legendary non-creature they control.