Yes, protection from a color means your attacking creature can't be blocked by creatures of that color
Fortunately, Wizards found a way to mitigate this nearly two decades ago and has been able to do some pretty cool things with this new format of card production
And that assumes theyre trading the next most valuable mythic in the set, and not one of the less valuable mythics like Jodah, the Unifier ($3.81), or Ajani, Sleeper Agent ($1.87)
You can only activate the ability once per turn, but thats usually enough in the right decks
Again, you'll have to turn to Amazon to get it as we don't have any in-stock, but check it out anyways by clicking this link: The Final Fantasy set in MTG has hit the world by storm
Sometimes I'll add a dork or two from them, but this and the order is mine