But probably rarely, and probably only after a wheel
Because when players ask whether there are crystals in Magic: The Gathering's Final Fantasy crossover, they are also speaking of the darkness crystals, which have been linked to much more sinister forces
These copies enter the battlefield tapped and attack your other opponents
Kind of a weird boardwipe/graveyard hate, but it's flexibility means it can be used both defensively to stop combos and to your own advantage synergistically with other cards
You'll still need to wait a few turns to get the most out of Barrowgoyf, but for three mana, it's hard to argue with its efficiency
White decks have a tendency to have low-costed permanents, and being able to bring one of them back to the battlefield every time you attack with Sun Titan is great