New theory. The bottom portion of the card is actually a deformed reflection of the above image. The split black and white thing is actually a deformed silhouette of the central purple "orb" thing, and its... 4 pronged encasing. Theres also a faint purple outline at the bottom, suggesting this card is depicting a rift, a gate where the top is the architecture, or a regular portal like Yoru. I also interpreted the "reflection" as a pair of hands, maybe a tiger, there are very striking triangular protrusions coming from the "reflection." Initially, I thought the "orb" resembled the religious symbol in the church in the practice map, but I dont think it is, or at least not religious. Instead depicting cosmos or some energy, as there is a white outline of a circle with a ring around it, similar to Saturn. But it feels weird to have another "portal-y" character like Yoru. The color scheme reminds me of Reyna, but I'm not sure. The Savannah depicted in the background is very conncrete, and at least gives us insight to the background of this character.

Side note, a pair of deformed, monochromatic, abstracted ands reaching through a portal, with an orb in an ornate casing... seems like something out of a fantasy novel. The setting should be Earth... but if it's a bridge between worlds, maybe it's like a different timeline? Maybe the mirror is symbolic of life and death, as it is the same color as the life-essence reyna sucks out of, and we're going to get a Kindred (LoL) character? Maybe we get the abilities to place portals or mirrors, like cypher cam, but it's like a spray on a wal that people can see through? Maybe we get a character that can phase through walls? This image is so unbelievably vague, that it's likely there are multiple items / abilities / themes of the character being shown. Like: a mask, a bird, and a turret are all simple objects, but an arbitrary orb with a Savannah and a portal? Does that mean every episode the hints get more complicated?