Three mana is a lot more than 2, but with how powerful the original version is, Darkstar Augur will always have a home to return to in constructed
You get to choose between a target-limited Quench, a Shock, or a non-flashbacking Faithless Looting for 2 mana
The turn that you transition into a TAG TEAM, you will have to use a Let Loose in an attempt to prevent them from getting a 1HKO on you the following turn
Arent these cards less powerful than Leyline of the Void
While white has other token generators that are also sagas, particularly in current Standard, the sequence of token batches over multiple turns uniquely captures the progressive nature of the summon's animation, rather than creating them all at once
Looking through Gatherer for all of the cards that have scry, it's clear that if you were able to get both of these out, a deck with a heavy scry strategy (scrytegy?) could draw a ridiculous number of cards