I think Falconer has done a bang-up job of pointing out that it is explicit, Yerameyahu. ANd it is not Indefinite. It last until either LOS has been broken, a new declaration is made, or it is dropped with a free action.
It is not explicit in the least. Did you get that underlined part from an inference? Because that is a House-Rule, the very same "sin" that Falconer is accusing me of.
The only things explicit about Spell Defense are:
You get it for yourself automatically, with no declaration or action needed.
To use it on anyone else, you must declare it and spend a Free Action.
It does not get used up if needed multiple times per round.
Designated characters are protected until the magician decides to end it (no action given - I'll explain below).
You can defend against spells that you are not aware of with a Test.
Now, TJ and Falconer, can you please show me exactly where in this section of the rules:
QUOTE (SR4A, page 185, Spell Defense, paragraph 4)
... it continues to protect the designated characters against other spells until the magician decides to end it.
where it not only declares what action must be taken to end Spell Defense but where it supercedes this rule:
QUOTE (SR4A, page 185, Spell Defense, first paragraph, second and third sentences)
To [use Spell Defense], the magician must spend a Free Action and declare who she is protecting. If Counterspelling was not declared in advance, it may not be used to defend others, unless the magician has delayed her action.
?I'll help you - it does not do either of those. Since the Duration Clause does not supercede the Action Clause then the Action must be declared and spent every time your Action Phase comes along otherwise you have "not declared it in advance and it may not be used to defend others."
Something here that may help you comprehend this apparently difficult concept is found on SR4A, page 144, under Combat Turn Sequence, specifically numbers 3. Begin Action Phase (A and B) and 5. Begin Next Initiative Pass.
The rules are fairly explicit about this.