起因是万法中铁缚术……
BANDS OF STEEL
Conjuration (Creation)
Level: Sorcerer/wizard 3
Components: V, S, M
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One Medium or smaller
creature
Duration: 1 round/level
Saving Throw: Refl ex partial
Spell Resistance: No
The interlocking hoops become briefly hot then disappear even as similar, larger bands streak from your outstretched hand toward the creature you indicate. With a satisfying metallic clank, the bands wrap around the indicated creature.
The victim must succeed on a Reflex save or be immobilized and thus unable to move. If the saving throw succeeds, the victim is only partially trapped by the bands, and is entangled.
A creature immobilized by the bands can attempt to escape as a full round action, either by bursting free (Strength DC 18) or wriggling out (Escape Artist DC 18).
An entangled creature can use a full round action to break free (Strength DC 13) or disentangle itself (Escape Artist DC 13).
Material Component: Three small silver hoops, interlocked.
比起CA的少了无助的说明，豁免未通过的状态只是变成了immobilized。
于是回头去找了一下PHB，但是并没有找到这个状态的词条说明，只是在直觉闪避中提到“However, he still loses his Dexterity bonus to AC if immobilized.”
于是又回头找了一下RC，词条倒是有了，不过看起来除了不能移动以外没有任何限制行动或者减值的样子？！
Immobilized: An immobilized creature can’t move out of the space it was in when it became immobilized. It otherwise
functions normally unless it’s fl ying. Immobilized flying creatures that have the ability to hover can maintain their initial altitude. All other f lying creatures subjected to this condition descend at a rate of 20 feet per round until they reach the ground, taking no falling damage.
:em032 这过了豁免比不过豁免好像还要难过的样子是怎么回事