Agreed. If you set filters on Gatherer for color weight you'll find there are very few cards with more than 2 like-colored mana symbols on them. Chroma/Devotion is the perfect way to reward mono-colored decks (beyond them having perfect mana) for their sacrifice of flexibility that a 2nd or 3rd color would grant them.
Personally, I would much prefer seeing power creep happening on cards with harsh color requirements than gold cards.
Anyhow, I hope there are at least more cards in each color with 3+ color symbols in their cost, for the sake of devotion.
Personally, I would much prefer seeing power creep happening on cards with harsh color requirements than gold cards.
This, sphixes revelation is generally easyer to cast than blue suns zenith. which is just wrong