The generally useless Mana Short aspect of Power Sink is traded for an epic scry 2
Just remember that means you are committing to casting that Phyrexian Missionary for 2 mana if you dont have anything else on turn 2 as a 2/3 lifelink is a pretty decent creature
Cheap, on curve, flying, and gives you powerful card advantage options if you can find instants and sorceries that can target your stuff
Also, if youre doing Ashnods Altar shenanigans, youll likely net a bunch of extra mana for your finishing move
The order builder: list, search, sets The Order page is clearly designed around the three real ways people build proxy orders: List: you already have a decklist, you just want it printed Search: you know the card name, you want it fast Sets: youre browsing and building as you go That triad sounds small, but it removes a ton of friction