Chlorosaurus Rex

Into the Woods. The Chlorosaurus can travel between forests in a move that appears similar to tree stride. 1/day, it can enter a group of trees and transport itself and any nearby creatures it chooses to another forested area it's been before. This works as teleport, and requires the appropriate roll to be made. This cannot work with merely a description of an area, as it isn't intelligent enough to grasp the details properly. When this goes off-target, it instead appears in the nearest forest to the randomly determined destination. This cannot be done in combat.

Rejuvenating seed. The large seeds growing on it's back contain revitalizing energy, giving it the ability to heal broken or sick trees in the forest. As an action, it can detach a seed from it's back, planting it to help revitalize the vegetation in a 50 ft radius. The exact effects of this can be decided by the DM.

Multiattack. The tyrannosaurus makes two attacks: one with its bite and one with its tail. It can't make both attacks against the same target. It can alternatively, make a single attack with Leaf Blade of Solarbeam.

Bite. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 32 (4d12 + 6) piercing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 17). Until this grapple ends, the target is restrained, and the tyrannosaurus can't bite another target.

Tail. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 19 (3d8 + 6) bludgeoning damage.

Leaf Blade. Melee Weapon Attack +10 to hit, reach 10 ft., one target. Hit: 49 (6d12 + 10) slashing damage. This attack counts as a magical weapon. The fern-like leaves on its tail sharpen and harden as it swings its tail around.

Solarbeam. Ranged Breath Attack (Recharge 6)
The dinosaur takes the stored solar energy in its body and lets it out in a direct beam that is 5 ft. wide. Each creature in the area must make a Dex save (DC 16). On a failed save, they each take 45 (10d8) damage.