There are certain spells that are only supposed to be possible to use while outdoors, under open sky. Sunbeam and Call Lightning, for instance. What will be the policy on this in EftU?

I believe it was discussed that an emote;

[Seven miles directly above you, a family mourns the death of their farmer after he was struck randomly by a bolt of lightning.]

Characters will quickly learn how the Underdark affects their use of the Weave, a process that could lead to some wonderful roleplaying opportunities. Any mechanical changes to certain spells will be noted for players, in the near future.