Breastplate is an item in HoloCure - Save the Fans!. It is unlocked by completing the Muscle achievement, which requires taking at least 500 damage in a single run. Players will receive the achievement whether they win or lose the run.
Breastplate reduces damage taken at the cost of speed and grants a chance to deal counter-damage if the player is hit.
Reduce damage taken by 25% and SPD by 10%. When attacked there is a 50% chance the attacker also takes 200% damage.
Level 2
Reduce damage taken by 25% and SPD by 10%. When attacked there is a 60% chance the attacker also takes 250% damage.
Level MAX
Reduce damage taken by 25% and SPD by 10%. When attacked there is a 70% chance the attacker also takes 300% damage.
Super Breastplate
Level MAX
Reduce damage taken by 30%. When attacked there is a 75% chance the attacker and all targets within 60px take 300% damage.
Behavior
For the purposes of this item, "when attacked" means coming in contact with an enemy or an enemy attack, including projectiles.
Active items, skills, or Special Attacks will not interfere with Breastplate's activation. This means that counterattacks can still trigger while dodging or when invincible.
There is one exception: Stealth Mode prevents Breastplate from activating.
Enemy projectiles can trigger counterattacks regardless of distance.
Counterattacks can be critical hits.
The counterattack happens after damage is received, so it can't prevent damage by defeating an enemy.
Damage reduction stacks multiplicatively with other damage reduction effects.
Kusogaki Shackles reduces this item's SPD penalty, completely negating it at max level.
Tips
Breastplate can be central to really tanky builds that like to camp an open space within an otherwise cluttered stage and stay within their own AoE while constantly recovering HP.
Somewhat of a staple for "no move" runs, as boss-types defeated with counterattacks will drop their Holozon Box right on top of the player, allowing for it to be picked up without moving.
Unless planning to make extensive use of counterattacks, Membership tends to be a better option.
Works best with characters who react positively to getting hit, either by healing, buffing, turning invincible or responding with a strong attack. Shirogane Noel, the item's inspiration, works very well with this item.
Nekomata Okayu'sSensitive Voice skill will devour an enemy immediately if the counterattack is a critical hit and charms them.
While Shirakami Fubuki can benefit from the item's effects, the penalty to SPD can reduce the effectiveness of Fubuki's kit.