Toggle on to summon a swarm of bugs around you, dealing 20 / 30 / 40 / 50 Physical Damage per second to nearby enemy units.

Enemies outside of the swarm deal 5 / 10 / 15 / 20% less damage to Tremble.

Drains 20 Mana per second until toggled off.

Create and tunnel through Terror Mounds. Terror Mounds grant 15 / 20 / 25 / 30% Movement Speed, 2 / 4 / 6 / 8 Health Regeneration, and Stealth while inside it. Stealth is removed while an enemy hero is inside the mound. Also gain the ability to Terror Port every 60 seconds between Mounds.

Maximum of 3 / 6 / 9 / 12 Terror Mounds. Mounds can be destroyed in 4 hits.

Passively causes attacks to hit twice, dealing 20 / 25 / 30 / 35% damage on the second hit.

Attacks also apply a 15% Movement Slow for 2 seconds.

Permanently summon Boris to aid you in battle. Boris has 800 / 1100 / 1400 Health, 60 / 90 / 120 Attack Damage, and {400} Movement Speed.

Boris can Ensnare enemies for 1.5 / 1.75 / 2 seconds, has access to "Terrorform", and has passive 20 / 25 / 30 Deflection. Boris's attacks apply -2 / -3 / -4 Armor for 3.5 seconds and a non-stacking 15% Movement Slow for 2 seconds.

+2 Strength
+2 Agility
+2 Intelligence