I have a level 3 light domain cleric. I have both the 1st level spell Guiding Bolt and the 2nd level spell Scorching Ray.
When I use a 2nd level spell slot with Guiding Bolt the damage is 5d6 and attacks against the target have advantage for a round, while Scorching Ray with a 2nd level spel slot is 6d6 damage, but you have to roll three times for each ray (which is 2d6) and it's rare for all three attacks to succeed.
What are the pros & cons of Scorching Ray? Why would I want to use it instead of Guiding Bolt?
The pros of Scorching Ray are:
The cons of Scorching Ray are:
The thing that could be either, depending on how superstitious you are about your dice (and what the AC of your target is):
You would want to use Scorching Ray if:
You would want to use Guiding Bolt if: