I have a question concerning the spell Sunbeam (PHB, 289). In the spell description it says:
For the duration of this spell, you can use a standard action to evoke a dazzling beam of intense light each round.
I´m not sure if this means that you may get the first beam in the same round you cast the spell or whether you have to spend one standard action just casting and then wait for your next round to send forth the first beam?
"Wasting" one standard action just for casting would be a high cost, so I guess you should be able to get the first beam in the round you cast the spell - but it does not say so in the spell description.