When the core is triggered, the Splitter Rifle is removed from the HUD and 4 laser targeters come from the corners of the player's field of view. When they meet, the core commences. During the charge up period, movement speed and camera rotation are slowed and all abilities are disabled, except for dashing and ejecting.
When the core has begun, dashing becomes unavailable, and a hitscan beam emits from the Ion's chest, capable of destroying any given Titan in a matter of seconds, and effectively bypassing most defensive abilities. Enemy players can see the charge up beams before the core fires and react accordingly, as Ion herself is fairly vulnerable to flanking and damage during the core.
The charge up period takes one second, and the laser core itself lasts for 3.5 seconds.
This ability, as a core, requires no energy from Ion's shared pool.
One of Ion's upgrade kits, 'Grand Cannon' enhances the duration of the core to 5 seconds, allowing for much more damage to be done, along with a greater chance to secure kills. This can be very potent under the correct circumstances.
The Laser Core appears in Titanfall: Assault equipped on Core Ion. When the meter is full, the Core Ion unleashes the Laser Core for several seconds, which constantly deals damage and pushes enemies back when in use. However, like Titanfall 2, when the core is in use the Core Ion’s mobility is greatly reduced, causing it to be ineffective against swarms of enemies.