
SlimGauge |

Do you mean "Does Limp Lash continue ?"
Now, Icy Prison blocks line of effect (says so right in the spell), but you already had the lash on target. Icy Prison does damage, so I'd say that the Limp Lash takes the same damage. Once it has suffered 15 damage, the lash is destroyed and that spell ends, although Icy Prison continues.
Edit: linkified spell name

SlimGauge |

Rather I believe the OP is asking if limp lash requires concentration, a free hand at all times during the spell, or nothing. The spell doesn't appear to specify.
Limp Lash requires the hand that wields the energy whip to continue holding it. I do wish there was a LOT more explanation about how Limp Lash is supposed to work.
This thread has no definitive answers.

Renen |

Do you mean "Does Limp Lash continue ?"
Now, Icy Prison blocks line of effect (says so right in the spell), but you already had the lash on target. Icy Prison does damage, so I'd say that the Limp Lash takes the same damage. Once it has suffered 15 damage, the lash is destroyed and that spell ends, although Icy Prison continues.
Edit: linkified spell name
Yeh. What I was looking for.