Spendarmar, Deva of Zeal

As an additional cost to cast Spendarmar, Deva of Zeal, destroy all non white permanents you have
in play, and return three creature you control in it's owner hands. Every non-white spell you cast cost {w}{w} more to be cast.
At the beginning of your upkeep, you can play every white spell with a converted mana cost of 4 or less without paying it's mana cost.
Indestructible.