It probably doesn't help that those unfamiliar with Infernal Charms (including me) only have gotten to see the cool shit Oramus has and not the other choices.
Here are some examples of what the Yozis are all about:
Malfeas is the fallen King of the Primordials. Before his surrender, he ruled Creation as formless and boundless power. Now, he is a many-layered city of brass and basalt, continuously expanding and contracting in an attempt to seek relief that will never come. Still, Malfeas is bent and broken but not unbowed. His scars serve as a shield against all of the world's woes; his heart burns with killing light that recognizes no barrier to its passage; and his brow is crowned with the tattered remnants of his universal authority.
Cecelyne is the Endless Desert that separates Malfeas from the rest of existence. She is the lawmaker of the Demon City, whose learned cynicism compels her to teach that law is no shield against the sword. As a result, she scourges her lesser with laws that they cannot hope to challenge, even as she scourges her enemies with her silver sands. Cecelyne has been known to provide her bounty to those who come in supplication, but that's because she understands the value of compound interest rather than because of genuine generosity.
She Who Lives In Her Name
serves. She is the Principle of Hierarchy, whose crystal exterior of cold logic conceals a heart that burns as fiercely and as ferociously as any of the Primordial Host. Her charms enable her to impose order upon chaos; understand Creation via dissection; and undo changes that run counter to the Primordials' intentions for them. Above all else, she is known for her abhorrence of free will, which she will correct for the sake of perfect efficacy and efficiency.
Adorjan is the most feared of the Yozis. She is the reason that the Demon City is filled with the sound of ceaseless music, for her silence is the silence of the grave. Along among the Yozis, Adorjan bears the Exalted no grudge, for she will teach them to let go of their attachments as they taught her to let go of hers in the Primordial War. She runs fast and free. Not a murderous Buddha, but a murderous
Bodhisattva.
Kimbery is the Great Mother, whose ever-changing moods are as predictable as the eternal tide. She loves her children, but because they are flawed, they will inevitably betray her trust in them. As a result, the Sea that Marched Against the Flame is ever prepared to punish them with acid, with poison, with mutation, and with her fathomless waters. Should those fail, she still has her countless children, who make even the greatest sea monsters of Creation seem as though toothless guppies.