Symbiotic Swarm.

Symbiotic Swarm is a 100-card Commander deck led by Kathril, Aspect Warper in the Abzan color identity (white/black/green). TableCommander estimates this deck at bracket 2 — core / casual.

The mainboard runs 35 creatures, 6 instants, 7 sorceries, 7 artifacts, 6 enchantments, 1 planeswalker, and 38 lands, averaging 4.23 mana value across non-land cards. 42% of non-land cards cost 3 mana or less; 42% cost 5 or more.