This causes the enemy to battle all units not yet on the field. If it wins, all your units are knocked out and the base panel is destroyed, preventing dispatching and un-dispatching of troops. If it loses, it and all its items join your party.
The downsides to this:
- Any units of yours the thrown enemy kills count as Ally Kills which can result in an unwanted ending to occur after beating the final boss.
- This new unit is not a student of one of your preexisting units, like if you simply created them as a new character.
- You might not get experience for defeating them.
- You can't use your captured target immediately as its HP is reduced to zero.
In Disgaea: Hour of Darkness, Disgaea 2: Cursed Memories, and Disgaea 3: Absence of Justice, an attempt to capture an enemy can be started at any time when the Base Panel is still on the field. In Disgaea 4: A Promise Unforgotten, a Discipline Room set within the Cam-Pain HQ is required to capture an enemy, and without it, players cannot throw enemies into the Base Panel.
Damaging an enemy before throwing them onto the panel may help in capturing the enemy. The likelihood of subduing them appears to be based on their HP. Depleting the SP of a monster may also help. This tactic apparently works best for Monster units. Humanoid units are supposedly harder to subdue. It is not possible to capture a unit you have not unlocked for creation, and attempting to do so will cause decimation of your troops and the Base Panel.
Capturing enemies while you only have a small or weak army is risky as you run the risk of losing access to dispatching better units if the capture fails or the enemy damages all your wanted good units. Before capturing an enemy in a battle you want to win, it is suggested that you dispatch all units you want to the battle so that access to them aren't affected by capturing an enemy.
In Disgaea 5: Alliance of Vengeance, there is a Capture squad that can be formed in order to let your units capture enemy units through a specific move on the battlefield. This method does not require you to throw the enemy you want to capture into the base panel.