Tier 2 upgrade
Heart of Thunder
Heart of Thunder in BTD6: forked lightning for the Druid that can hit up to 31 bloons. Damage, pierce and best crosspaths.
Unleashes regular blasts of forked lightning that arc from bloon to bloon.
Hard Thorns
Heart of Thunder
Druid of the Storm
Ball Lightning
Monarch of Storms
Stats
Main attack
- Damage
- 1
- Pierce
- 2
- Attack speed
- 1.1s
- Range
- 35
Lightning
- Damage
- 2
- Pierce
- 5
- Attack speed
- 2.3s
- Range
- 35
How to use Heart of Thunder
Heart of Thunder gives the Druid a second attack: a lightning bolt every 2.3 seconds that deals 2 damage and forks to nearby bloons, even through obstacles. Each hit splits into up to two forks, so one bolt can hit as many as 31 bloons. The lightning cannot pop Purple Bloons and its pierce cannot be buffed.
When to buy it
It adds a lot of spread damage for $850, which helps against wide groups of weak bloons. The forks tend to jump across the map rather than staying near the Druid, so do not count on it for reliable cleanup in a specific spot.
It is the required step to Druid of the Storm, Ball Lightning and Monarch of Storms. As a crosspath it matters most on Avatar of Wrath (2-0-5), where the lightning gets the Avatar's attack speed and damage bonus. On middle path Druids it adds little; 2-2-0 can help remove regrow on a budget, but Druid of the Jungle usually handles that better.
Is it worth it?
Yes as a step to the storm path and as the Avatar of Wrath crosspath. On its own it is a modest upgrade.
















