Venus Flytrap

A stationary medium sized flytrap (30 health) with razor sharp teeth that bites at any creature that comes within 5 feet of it that is hostile towards it or the planter. Deals 5d10 piercing damage.

If the plant kills any medium sized creature or larger with its bite, the flytrap will consume the creature if it is able, and will digest it over the course of three rounds, after which it will grow to size large. The flytrap in this state deals 8d10 piercing damage, and may consume a large creature or bigger in order to grow once again. The damage of its bite increases by 3d10 each time it grows in size, as well as gains 30 hitpoints.