This is my favorite commander deck, i started out with gitrog and have been slowly adding colors to it. now im back to 3c because of how many lands matter cards that exist now and the fact that i enjoy the more graveyard focused approach that Lord windgrace promotes over the more landfall / big spells focus that i had with Golos, Tireless Pilgrim.
As a rule i have tried to make sure every single card mentions "land" or a basic land type somewhere in the textbox.

Stuff about the deck (WIP)

Power level

I don't really have a good idea of where this deck would be on the scale since i have only really played with a small group of friends, so like most people im gonna say it's mid tier :p

starting hands

I have noticed that the deck can get stuck doing a lot of nothing if there isn't enough card draw in the first few cards, even with lord Windgrace providing some.

Orcish Lumberjack + an untapped red source and a forest with atleast one of them being able to produce black mana allows you to ramp into Lord Windgrace on t2.

Squandered Resources + 3 lands that together produce all 3 colors allows you to ramp into Lord Windgrace on t3 as long as atleast either the black or green land enters untapped t2.

Lotus Cobra + a fetch land or Harrow ramps you into windgrace t3.

Most hands with Exploration and 3 or 4 lands are great but especially those with a fetch land and a way to get it back from the graveyard like Life from the Loam or Crucible of Worlds.

Combos

.Moraug, Fury of Akoum + Kamahl's Will and some landfall triggers make for some decently threatening attacks, the land creatures can be tapped for mana and then get untapped by Akoum which together with Kessig Wolf Run allow you to boost a couple of lands for a lot of extra damage.

While i wouldn't really call it a combo i would like to enlighten any potential readers about the fun interaction between Song of the Dryads / Imprisoned in the Moon and Thespian's Stage / Vesuva, the auras turn the enchanted permanent into a land allowing you to target it with the copy lands but the effects of the aura is not a copiable value so the copy lands become normal versions of the enchanted card.