Words of Power Question (Barrier, Lightning Blast)

[Balkoth]

One of my players was wanting to try this system and I'm still trying to wrap my head around it.

Target words.

Effect words

If someone made a Barrier out of a Lightning Blast...

1, what level spell would that be?

2, does that effectively sort of become Chain Lightning where you can usually angle the wall to hit only enemies in a zig-zag or whatever?

3, does the wall continue to do damage each round to enemies in it? If so, when is that damage done? Caster's turn? Enemy's turn? Something else?

[Kaouse]

From what I can tell, Target Words have a minimum spell level, but don't actually effect the wordspell's actual level. Lightning Blast is level 3, the same minimum spell level as the Barrier word.

Barrier word states that it must be straight when formed, so no zig-zagging unless you apply the Boost word to alleviate this restriction.

The duration of the wall is set by the effect word, with all lightning effect words having instantaneous duration. This means that it's effect takes place once, immediately when cast (on the caster's turn), and then never again. The damage done is also set by the effect word (for Lightning blast, 1d6/caster level to a max of 10d6).

[Balkoth]

Thanks!