Chimil, the Inner Sun ($21.22) Spending 6 mana to make your spells uncounterable is a bit expensive, but at least being a colorless artifact allows Chimil, The Inner Sun to be in any color of deck aside from Green
(Damage and effects that say "destroy" don't destroy it.) Enchantment Radiant Destiny Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) As this enchantment enters, choose a creature type
You can also use this ability on your opponent's turn, which gives you even more flexibility
Cards definitely look older than other more recent sets, but they also lack the archaic small print and classic art style seen in earlier sets
This "enters or attacks" trigger is insane, because provided you have at least one nonland permanent in your graveyard, Sin is always going to bring it back, and by the time you play him in these colors it's virtually impossible that you don't have stuff to get back