I've asked this on another site, and i think it's the right answer. But i'd like a second opinion please, because i think me and my friend have been doing this wrong.

We're half way through a game, and it will come up again (he has 2 sorcerers) We continue our game on tuesday (tmrw)
The spell in question is the Anger of the Gods spell. The question is, does it remain in play and affect any enemy unit coming within its radius.
Our example....... my opponent casts the Anger of the Gods, and my unit is 40cm away from the sorcerer when it's cast. If i give a command to that unit, and move it inside the radius of the spell, is it then affected by the Anger of the Gods spell? is it now a -2 command check (-1 for 2nd cmd, and -1 for the spell)
Or does it only affect the units within 30cm on it's initial casting?
(we've been playing it that the spell remains active, and affects anyone walking into the 30cm radius)