Like most Magic: The Gathering cards, the value of Dargo, the Shipwrecker 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 (Magic Online Promos)
Speaking of information and allowing you to pace a game and match your spells up against your opponents, that is precisely what Temples are exceptional at doing
Custom printing gives cube creators much more flexibility when testing archetypes, balancing formats, or building highly curated draft experiences without needing to source expensive original singles
As a subclass of the multiples of their best card scenario, Eternal Witness, Snapcaster Mage, and Kolaghans Command all exist to recur what might be the best option to take
That means it can attack or block as soon as it hits the battlefield, but by your next upkeep it'll be turned off again