Innate Spellcasting. The guardian's innate spellcasting ability is Wisdon (spell save DC 15, +7 to hit with spell attacks). The guardian can innately cast the following spells, requiring no material components:
At will: druidcraft, thorn whip (11th level)
3/day each: spike growth, silence
1/day each conjure animals, plant growth
Keen Hearing and Smell. The guardian has advantage can communicate with beasts and plants as if the shared a language.
Tree stride. Once on its turn, the guardian can use 10 feet of its movement to step magically into one living tree within its reach and emerge from a seconf living tree within 60 feet of the first tree, appearing in an unoccupied space within 5 feet of the second tree. Both trees must be Large or Bigger.
Multiattack. The Guardian makes two bite attacks.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature, Hit: 10 (2d6+3) piercing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.