Twinning lamprey

The is a creature that spawns in pairs, and has a special ability to respawn a new, fully-healed copy of itself unless both copies are killed in the same turn.

The lamprey's is similar to a psionic weapon - it is defended by the target's MA instead of the target's AV. This can make the lamprey's attacks more dangerous to characters with low willpower.

Weaknesses

 * Normality gas and other reality-stabilization effects will prevent a from respawning its clone.
 * Action prevention effects, such as frozen, stunned, or asleep, will temporarily prevent a from respawning its clone.

Strategies

 * Attacks that can hit and kill both lampreys simultaneously are preferred, such as using grenades, piercing/spraying missile weapons like the or, or area damage effects like Freezing Ray/Flaming Ray.
 * If you're having trouble killing both at once, try weakening each of the lampreys before attempting to kill them both in the same turn.
 * To improve the chances of killing both, you might consider leading the lampreys down a narrow hallway or confining them in a smaller space before attacking.
 * If you have very high quickness you may be able to attack each separately and still destroy them before their end-of-turn respawn.