Editing Heartless Tsum

  |UXbattlename=Destiny's Force

|UXbattlename2=Fragments of Sorrow

  |UXbattlefile2=Fragments of Sorrow KHHD.ogg

The '''Heartless Tsum''' is an [[Emblem Heartless]] that was introduced in ''[[Kingdom Hearts Union χ]]'' during the [[Disney Tsum Tsum|Tsum Tsum]] cross event in 2017.  

The Heartless Tsum is composed of multiple stacked Tsums based on pre-existing Heartless, all being in a beanie like shape. The stack includes (in no particular order): One [[Shadow]], two [[Bandit]]s, two [[Soldier]]s, two [[Powerwild]]s, two [[Aeroplane]]s, two [[Air Soldier]]s, one [[Darkling]], one [[White Mushroom]], two [[Minute Bomb]]s, one [[Pirate]], and one [[Burrfish]]. The Tsums appear to be haphazardly stacked atop each other, mimicking the gameplay of the ''[[LINE: Disney Tsum Tsum]]'' mobile game.

This giant Heartless has two attacks: one in which a gloved hand materializes behind it to give it a poke, causing all the stacked Tsums to tumble and crash down onto its opponent. The second attack takes elements from the ''[[LINE: Disney Tsum Tsum]]'' mobile game; a symbol of a [[Shadow]] Tsum appears in the center of the screen, causing the stack of Tsums to all turn into Shadows. Then, the previously mentioned gloved hand plays a "{{w|Connect the dots|connect the dots}}" game with the Tsums, causing them to crash down on their opponent in a similar manner, followed by a magic bomb that falls from the sky and explodes.