Healing Drone

An automated drone that will heal you when not at full health. Initial price is. The drone generally will appear from the first level, regardless of difficulty, and is also useful in unlocking "The Back-Up" use item which requires you to have 4 drone helpers at once.

Mechanics
Each healing drone will heal for 5hp/tick for a limited amount of time when not at full health. They will then need to recharge before being able to heal again. Arms Race has no effect on it.

Tactics
Together bundling Basic Drone and Bundle of Fireworks, this drone can be extremely useful at reproducing fireworks for its cheap cost.