Unlike Clash of Clans, only one hero in Boom Beach can be used in one battle. We will be talking about the other option here — Captain Everspark.
Captain Everspark is an engineering warfare genius who was a prisoner of war in the Gearheart Factory. There is also some sort of resemblance with Colonel Gearheart; so, I am guessing that she could be the offspring of Dr. Terror and Colonel Gearheart. That being said, Captain Everspark can only be unlocked when the player reaches HQ level 15 and has already cleared Gearheart Factory.
Compared to Sergeant Brick, Captain Everspark has a more decent amount of HP at level one (1,500 HP). Her movement is moderate, but her range is slow with a 80 base damage per second. Her normal attacks seems like the electro wizard of Clash Royale, but I doubt if it has a zap or mini stun effect. Her passive ability is great though, she is like a witch summoning critters in a particular time range.
Her three special abilities are pretty remarkable too: (1) Critter Swarm, (2) Explosive Charge, and (3) Universal Remote.
The first ability is like the regular critter spawn but critters will be summon on the place where Captain Everspark is standing. It is a pretty good distraction.
Explosive Charge strategically gives advantage in the game by destroying the nearest enemy building. You have to be careful though because it consumes a lot of energy overtime.
Universal Remote is awesome since it mind-controls an enemy building against them. It will serve as a distraction since it will become an enemy target. After the effect runs out, the targeted building will be temporarily stunned and restored back to the enemy’s side. So, don’t forget to destroy it before the time runs out.
For now, I could not think of a better army that could match up with Captain Everspark because of ridiculously short range. I am using Tank + Medic + Grenadier attack but this hero always dies first. It’s probably more effective with a Heavy + Bazooka attack since it complements with the range — just be mindful of the differences in movement speed because this hero can be your distraction while attacking.