Priest of Titania clearly belongs in an Elf deck, but other 2mv mana dorks produce extra mana in combination with other strategies
Opponents can't try to stop the ability by exiling the card
Smart investors treat Pokmon pack investing like stock trading
According to the lore text at the bottom of the card, the creatures are trapped on a rock (possibly an asteroid.) Someone left behind an encrypted log recording the existence of slivers, either an unlucky explorer or, perhaps, a scientist involved in experimenting with the creatures, which would be a nice callback to the Riptide Project
Certified Guaranty Company (CGC) is both cheaper than PSA and has a quicker turnaround time
Other players want to run those Goyf decks, but just substitute something in place of the million-dollar- man monster