I've decided to expand the discussion that was happening in this thread
. I want more opinions and here this subject will probably get more attention.
I was thinking about the concept of PnP Free Action. Here's what PHB says:
Range: Touch Components: V, S, M
Duration: 1 turn/level Casting Time: 7
Area of Effect: 1 creature Saving Throw: None
This spell enables the creature touched to move and attack normally for the duration of the spell, even under the influence of magic that impedes movement (such as web or slow spells) or while under water. It even negates or prevents the effects of paralysis and hold spells. Under water, the individual moves at normal (surface) speed and inflicts full damage, even with such cutting weapons as axes and swords and with such smashing weapons as flails, hammers, and maces, provided that the weapon is wielded in the hand rather than hurled. The free action spell does not, however, allow water breathing without further appropriate magic.
The material component is a leather thong, bound around the arm or similar appendage, which disintegrates when the spell expires.
Focus on the word "normally". That makes me uncertain if a "PnP" behavior would include the allowance of Haste/Improved Haste/Increased Movement Rate.
To be honest, I'm not even sure if it should protect against Grease, Entangle and Web. I mean, if you're tied by a rope would Free Action release you? I don't think so.