Distress Spores.

When the myconid takes damage, all other myconids within 240 feet of it can sense its pain.

Sun Sickness.

While in sunlight, the myconid has disadvantage on ability checks, attack rolls, and saving throws. The myconid dies if it spends more than 1 hour in direct sunlight.

Actions

Fist.

Melee Weapon Attack: +1 to hit, reach 5 ft., one target. Hit: 1 (1d4 - 1) bludgeoning damage plus 2 (1d4) poison damage.

Rapport Spores (3/Day).

A 10-foot radius of spores extends from the myconid. These spores can go around corners and affect only creatures with an Intelligence of 2 or higher that aren't undead, constructs, or elementals. Affected creatures can communicate telepathically with one another while they are within 30 feet of each other. The effect lasts for 1 hour.

Environment: Underdark

Myconid Sprout