For most players, build Wilhelt, the Rotcleaver it does everything the tribe wants (tokens, sacrifice, draw), the precon is widely available, and its the most forgiving to pilot
There are other options in Saint Traft and Rem Karolus who make tokens by tapping and have a convoke ability to untap so they can be triggered multiple times in a turn, or even Kykar, Winds Fury who cares about noncreature spells to create flying spirits, but essentially, based on the main theme of this deck, I would strongly recommend Kasla as the commander
The Planeswalker Lolth, Spider Queen gains a loyalty counter every time one of your creatures dies, with loyalty abilities that spend one life to draw a card (+0), spawn buffed-up Spider creature tokens (-3), and create an Emblem (appropriately at a loyalty cost of -8) that, if you did an opponent anywhere between one and seven combat damage in a turn, bumps that damage up to eight
44% of Commander Legends: Battle for Baldur's Gate Draft Boosters contain at least two rares or mythic rares
This effect reduces only the amount of white mana you pay
Hilariously, it's also implied by the Invasion of Segovia card that said single soldier still ended up losing