Billy Bobcat has enough strength to rip a Confine, but not after he gets weaknessed. Here's my question.
If he starts his rip count, and I weakness him after he starts, can he finish the count? It does he need to have "sufficient strength" at both the beginning and the end of the count?
I would rule that the weakness interrupted the count, that you need to have the requisite Monster Strength at all times during the rip count to continue it.
Ripping from Entangle with an Endow is not a three count. The call is "Endow: I rip free," or "Endow: I break you free." (For using it on others.)
Escape Binding: Some creatures can rip free from binding spells. This is a three-count action with the phrase “I rip out one, I rip out two, I rip out three.” While the creature is doing the three-count, it is vulnerable to attack. While ripping free, the creature may not use any skill requiring movement, such as Dodge...
An Endow will also allow a recipient to break free, or to break someone else free, from an Entangle. However, doing so immediately expends the benefit of the spell. You must state “Endow , I break you free” when doing so. This is an out-of-game statement and can be made while under the effects of Silence.