Eclipse Bloom seeds a wide area with black-petaled flowers that emit dim, shifting light. Creatures within the bloom suffer radiant and necrotic damage each round and cannot regain hit points. The effect lasts one minute, corrupting the ground and often attracting planar or undead entities to its presence.
Charred petals unfurl from oily stems, each bloom flickering with dim light that casts no shadow. The ground steams where they grow, and their scent is metallic, sharp, laced with a dry rot.