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
For example, my boyfriends Nahiri, Forged in Fury Voltron deck runs 15 creatures, 22 equipment artifacts, and one enchantment aura, War of the Last Alliance, as one of his win conditions
Heres another spot where Kodama of the East Tree would make an appearance
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