Why is the deck a good choice
That heuristic, whether you want to think of it as suits of cards or Hogwarts houses, dictates not only whether spells are, say, more defensive or more aggressive, more telepathic or more physical, but also the personalities of the characters wielding the magic and, to an extent, those of the players, who build their decks around one or two, and occasionally even more, of those colors
Hour of Reckoning Tokens are commonplace in Commander, making Hour of Reckoning a fearsome one-sided wrath
however, the more colors that are used, the harder it is for a player to have the correct types and amount of mana to cast their spells, making for a tactical trade-off
Based on the latest market prices tracked on TCG Stacked, a foil copy of Nicol Bolas, the Ravager // Nicol Bolas, the Arisen is worth about $36.70 USD
In practice, I feel like I usually see this card used in the most unimpressive ways