Death Rose

The Death Rose, such a pretty little things, at least until you get closer. The Death Rose spell creates a black rose withing 40 feet, and lasts until dispelled. If any creature steps onto it or the 5 ft of space around it, they take 3d4+spell casting modifier necrotic damage. If a creature is killed by the death rose, the area of danger expands outwards by 5 ft in every direction, able to spread up wall and across ceilings with enough bodies. The danger area around the death rose counts as rough terrain, and costs double movement speed to walk across. Creatures gain disadvantage for Dexterity rolls, saves, and checks while standing in the danger zone. The death rose itself has 5 hp when first summoned, and gains 5 hp with every kill it gets, the death rose also has an AC of 15, and all attack rolls against have disadvantage if not magical. Any magic attacks, not magic weapon attacks, will immediately destroy the death rose, ending the effects immediately. The danger area is full of black thorny vines, which grow through earth and stone upon consuming a body. If a creature is prone, incapacitated, or of the size small or tiny, in the danger zone, it is grappled and killed after 3 rounds if it does not succeed on a dc15 strength check. The death rose grants undead within its area advantage on attack rolls, saving throws, skill checks, and heals for the damage it would do to living beings.