SPARK is a Class or Specialization in XCOM 2. SPARKs are robotic soldiers added in the Shen's Last Gift DLC. They can be built in the Proving Ground once the DLC mission is completed. If the mission is not played they can be built after researching Mechanized Warfare.
"These high-powered robotic units can unleash devastating frontline attacks or absorb incoming fire and protect the squad."
SPARKs are your frontline powerhouses, performing in a tank capacity, taking on enemy fire to shield the squad, and dealing some up close devastation. The cannon attacks shred armor, their mechanical chassis is immune to fire and poison and they can remotely hack access points with their SPARK BIT.
Take three actions this turn, and no action is turn-ending. Multiple Standard Shots incur a small recoil penalty.
Gain a point of armor and always provide high cover to all adjacent squadmates.
Equipped Heavy Weapons deal +2 damage and have increased area of effect.
When targeted by an attack, the enemy has a chance to panic.
Send the BIT to a damaged robotic ally and repair it. Advanced BITs can repair slightly more.
Every time you are targeted, part of the energy is channeled into your heavy autocannon. This energy is unleashed with your next Standard Shot.
Generate a protective field which redirects any attacks against allies inside it towards you. Gain bonus defense and armor while active.
When Overdrive is active, Standard Shots do not incur recoil penalties.
Attack any enemy within movement range with a powerful melee attack.
While Overdrive is active, break through walls and cover while moving.
Launch the BIT to any visible location where it releases a powerful explosive blast. Advanced BITs do more damage.
When an enemy is revealed, there is a 33% chance to take a free Overwatch shot.
Release a blast of energy, damaging all nearby enemies. This attack has no cost or cooldown, but consecutive Novas will damage the SPARK.