Better ways to proliferate without paying so much mana include Yawgmoth, Thran Physician or casting a low-cost sorcery like Thirsting Roots
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Yavimaya Sojourner)
This is even better in five-colored decks where the missing color means that much more to hit
No, I was not in heaven, but we have been gifted a piece of it here on earth one of the most sought-after white cards in all of Commander
Paladin Danse, Steel Maverick By no means is Paladin Danse, Steel Maverick a bad card
Well, I am no stranger to this and have purchased a few things myself