Red and blue have each brought a few exciting Giant cards of their own - in total Kaldheim brings around 10 quality cards for a Giant Commander deck
Crosis, the Purger is in great colors to be running discard strategies, and its significantly better than Darigaaz, the Igniter, which deals damage according to that colors presence in their hand
Once you reach critical mass of Elves, you can tap Lathril and ten of your other Elves to make each opponent lose ten life and you can ten life
Szarel, Genesis Shepherd lets you play lands from your graveyard, and there are a ton of landfall effects that play into that, too
Future sets releases may or may not include them, and when WotC does, theyre readily available