I think most of what you see posted here is nonsense. Coyotes normally hunt alone. It is actually a rare and exciting day when we have hounds get on the scent of two coyotes rsther thsn one. Its happened exactly twice in my ten years of hunting. If coyotes in packs, these are usually feral dog packs,unless it is a mother with pups, or, in Canada or the far northern borders, perhaps wolves?
I've hunted with hounds for over 10 years ( we only chase, never kill, we love the wildlife) and have never seen a coyote "lure" an animal. They do seem to like to play with the hounds but not in any sort of vicious way. They are dogs, for goodness sakes.
They mainly eat rabbits, ground squirrels, insects, mice and birds. Plus, road kill and, if they are urban or suburban, they learn to eat chickens and other undesirable foods. They would be very unlikely to eat a deer, they weigh about 45 pounds full grown and I'd be highly surprised if they could actually kill one. People confuse them with wolves.
They do kill newborn lambs and calves, unfortunately, if there isn't enough natural prey to eat. But, good farm management would prevent this problem.
I would never be afraid of a coyote, although I certainly wouldn't let my small dogs or cats run around loose if I knew they were in the vicinity. I see them often here in AZ, even right in the middle of the city! Coyotes are shy and run quickly from humans, I consider it a treat when I catch more than 20-30 seconds up close to view one.
There is information about oysters which you can find through the MFHA.com website. ( Masters Fox Hunters Association)
One thing that I dislike about coyotes is that they have taken over the habitat of the red and gray foxes which seems to have decreased the numbers of foxes. Not sure if this is true but it seems to be the case.