Can't say I've seen one on a Regal before. Maybe just don't remember reading about any that is, since the folks around here are pretty clever (most of the time!) so maybe someone will have an answer for you.
Local auto parts stores sell dedicated oil drain pans of various sizes and designs, and you can pick up rags and maybe even a funnel too, along with the filter and the oil. If you're in a suburban area like I am (San Jose), you'll have plenty of the big chain stores and a few mom-and-pop stores nearby.
As they said, it's not hard, but you will need at least the minimal amount of tools. Proper wrenches and (I assume?) a jack to lift the car up slightly to make it easier to get to the drain plug. And at least one jack-stand to go with it.
I say "assume" because though I've been changing oil for close to 45 years now, I've never changed the Regal's myself. Been too busy to partake in that "fun" project, so have let the 'changers do it for me.
Maybe those here that have done it can say for sure if you need to jack the car up, or can do it fully on the ground.
If so, it might help if you're really skinny with long arms!