Improved Simic Land Destruction (Pauper)

EDIT: HUGE UPDATE. Fit in a Plains to allow a better sideboard, and this is the help we needed against stompy and elves. Condescend proved to be awesome and to fix ld-less turns better than Temporal Spring, so I cut the latters for the formers. Jaddi Offshoot is also incredible stalling if unansered. Added Mortuary Mire and Bojuka Bog to fetch them with Reap and Sow in control matchups. I may add an additional Karoo land for further value with them, but I don't want to risk less chance of having white mana available when I need it.

I'll write a more detailed description later on.

I was teching for a long time with Land Destruction in Pauper and I knew there was a way of making it competitive. I tried each combination of colors but didn't succeed that much. Then I found this amazing decklist by Enzi: https://deckstats.net/decks/55597/480211-simic-land-destruction/es

This decklist is intended as a fork from that decklist, but with my own takes and ideas.

For now I just want to say that I chose Ice Over on sideboard even if it is sometimes worse than Narcolepsy because it can enchant artifacts, and this helps a lot when facing Affinity which has those Darksteel Citadel.

I may try some Eldrazi Skyspawner in place of Nest Invader: although we would lose the early preassure of the Invader the Spawner can fly and it allows me to preserve Monarch in some edge cases, and a 1/1 token trades better than a 0/1 one.