You get to run better utility lands and can combo off for the win off 1 amulet or spelunking much easier. With analyst + 2 lotus Fields+ shifting woodlands w/1 "amulet" you have infinite mana. From there depending on what else you have, you can win in any number of ways. Killing with infinite hasty titans with mirror pool. Boseiju/Otawara all their permanents. Gain infinite life. No need for the valakut package when you're essentially winning in the ways.

It's a fairly complex line, but you can get there from just 2 amulets and a single titan. I'll come back to this comment in a couple of minutes with a link to a video that explains the full line. Once you go through the full setup, the end goal is mirrorpool copies a titan, hanweir battlements and valakut give the new one haste, and two lotus fields sacrifice themselves, valakut, and battlements. Turn woodlands into aftermath analyst in your graveyard, then sacrifice it. It'll return woodlands, valakut, battlements, and two lotus fields. With the lotus field triggers on the stack, you copy a titan and give it haste. Rinse and repeat this for infinite mana. If you add a land that gains you life, you also can get infinite life. If you have dryad in play, that's infinite valakut triggers. Adding valakut/dryad to the mix means you can do the loop in opponent's upkeep if they had ring protection on their previous turn

Edit: the video that explains it is here. I suggest slowing the video down and taking notes. That's what I did.

https://www.youtube.com/watch?v=VNeydtrg5TU