Bloodthorn Treant

Establish Roots. As part of your movement, you may dig your roots into the ground and plant yourself firmly. Your speed is reduced to 0 as long as you remain rooted. Your roots dig deep and extend your grapple range to 15 ft. against any creature that is on the ground.

Slam. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 2d6 + 4 piercing damage.

Propagate. As an action, you may plant a Bloodseed into the ground, as if you were planting it in a deceased creature, within 5 ft. of you. While you are rooted, this range extends to 15 ft.

Pollinate. As a bonus action, you shake your branches and release a 15 ft. cloud of red pollen into the air. The pollen activates any Bloodseed planted in its area, providing the temporary hit points of the Bloodseed's glow immediately. Once a Bloodseed has been pollinated, it will grow into a Sapling at the beginning of your next turn. If a Sapling has been pollinated, it will grow into its mature form, as determined by you, at the beginning of your next turn.