The steep price is usually the highest impediment, and the Avatar version doesnt help much in this regard
The fact that so many cards in Bedecked Brokers grant counters means that the player's own creatures should be safe when using this card
I suspect her non-foil future is as a $3 mythic
For example, if you're playing a control deck featuring both Kefnet the Mindful and Hour of Revelation, you don't have to worry about your creature going away when you sweep the board
Since this has Improvise, you can tap Treasures or Clues to draw cards
Like most Magic: The Gathering cards, the value of Mox Opal depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Double Masters)