Dr. Boom by DakDez17

Passive: Whenever Dr. Boom takes more than 5% of his maximum health within 4 seconds, "Bombs Away" active effect will trigger with no mana cost or cooldown. In addition, Dr. Boom uses Fuel instead of mana. Fuel is generated at 5 fuel/sec when staying in one place for more than 2 seconds, up to maximum of 100 Fuel.

Active:
Fuel Cost: 2 Fuel
Cooldown: 5 seconds

Launch Boombots into all nearby enemies. When Boombots reach their trget they explode dealing 56 (+4% per level) damage to it and 33% of the damage to nearby enemies. Boombots can be destroyed by receiving 2 hero attacks, but will still explode as if they reached the target.

Fuel Cost: 5 Fuel
Cooldown: 5 seconds

Dr. Boom zaps the target, dealing 95 (+4% per level) damage. This ability also charges all Boombots on its way, increasing damage they deal by 75% and their movement speed by 50%.

Fuel Cost: 15 Fuel
Cooldown: 20 seconds

Orders a delivery drone to gather up to 5 nearby Boombots and then carry them over the targeted area. Boombots will target the closest enemy, preferring enemy heroes.

Fuel Cost: 7 Fuel
Cooldown: 12 seconds

Dr. Boom gains shield with 450 (+4% per level) durability for 6 seconds. While this ability is active you can use it again to perform a short ranged jump, consuming the remaining shield. Upon landing Dr. Boom deals damage equal to 50% of the shield consumed and slows enemies by 25% for 2.5 seconds.

Passive: Dr. Boom enters Alarm Levels based on his remaining health.

Alarm Level 1: Activates when his health falls bellow 75%. Dr. Boom gains 15 armor and 40% increased spellpower.

Alarm Level 2: Activates when his health falls bellow 50%. Dr. Boom gains 30 armor and 40% increased spellpower, while his Boombots become 25% faster.

Alarm Level 3: Activates when his health falls bellow 25%. Dr. Boom gains 45 armor, 40% increased spellpower and 50% cooldown reduction, while his Boombots become 50% faster. He also gains ability to finally press the button.

Active:
Cooldown: 240 seconds

Dr. Boom presses the red button, causing an explosion (in which he dies, very hero-like) that deals 600 (+4% per level) to all enemies in a wide area around himself. Afterwards his Power Suit remains on the battlefield for 15 seconds, triggering "Bombs Away" every 3 seconds.

Cooldown: 120 seconds

Summons 3 Microbots with 680 (+4% per level) health, that follow Dr. Boom for 25 seconds. Every 5 seconds they trigger "Bombs Away" and when "Delivery Drone" is used they also rush to the targeted area, where they explode dealing 150 (+4% per level) damage each.