So, play your fetch lands
You're often going to be splitting the party between which Heroes quest and which challenge each turn, but Anna helps even things out and pushes those questing Heroes a bit further
Cyclonic Rift, Cyclone Summoner, and even Scourge of Fleets can help do this on top of cards like Damnation and Toxic Deluge coming down the turn before
Notably, Jump In lets you keep the cards from the packets you select, which effectively adds to your collection with each entry
Ruric Thar, the Unbowed Ruric Thar, the Unbowed saw some play out of the sideboard while in Standard
It's broken with #4 below as it'll ensure you get the most powerful game-smashing upkeep trigger