When you are briefing a raid team on a fight they have not seen before, or one which they’re not very familiar, you shouldn’t be too wordy.
Before the first pull
I like everyone to have watched a fight video, which you’d linked in guild forums some days before. Ideally you’ve agreed on a strategy framework, if there are alternative methods.
On the night, I think you should give a brief description of the fight, then go in a take a wipe to see it first-hand.
Think about how that might compare to other first-times you’ve had on an encounter. How long does your raid leader talk for? Are people jumping around and getting bored? You can’t even tell whether they’re listening.
I prefer to describe it like this:
“Tank: put him in the middle, facing away.
Melee: spread single-file around the boss.
Ranged and healers: clump at position x and y.
Everyone: on his special ability blah, spread out evenly through room, whilst tank stands still.”
I want each role to have their action called out specifically. I don’t go on about the boss’ abilities much.
People usually need to see a fight from a first-person perspective.
Gather up, buff up, then give a more detailed briefing.
Now don’t describe abilities in generic terms, talk about what they mean to the players.
For Marrowgar, say “stand close together so when he bone spike’s someone, you can free them quickly”. Use few words.
No voice comms will let you get away with lots of long verbose descriptions. Sound quality isn’t great, people’s attention spans are limited. Then, if you don’t call out roles, they don’t know when to tune-in.
Generally, I like to describe a fight in terms of our roles, and not by the boss’ abilities. That’s the first principal. The second is to use as few words as possible, to be brief and accurate.