Azor's Gateway
 
 
1, Tap: Draw a card, then exile a card from your hand. If cards with five or more different converted mana costs are exiled with Azor's Gateway, you gain 5 life, untap Azor's Gateway, and transform it.
 
 
 
Sanctum of the Sun
 
 
(Transforms from Azor's Gateway.)
Tap: Add X mana of any one color to your mana pool, where X is your life total.