Need? Not really. You can use dykes or side cutters or needle nose pliers for cutting the wire, and a small ball pein hammer or a rock to tap things, some channel locks or water pump pliers to grab the nozzle, a flat blade screwdriver to scrape crud from inside the nozzle, etc.
Handy? Yes. Handy wire cutter to snip the wire electrode, handy contact tip grabber, handy nozzle spatter and crud remover, handy pliers tip, handy mini hammer head to qive a quick tap to things that need a little tap, handy nozzle pliers for when a nozzle is hot or needs a little extra grip to remove it, etc. One handy multi purpose tool that costs about the same as any one of the other tools you would need to do one task (or maybe two if you use a pair of pliers as a blunt object to tap things into place).
The cheap HF ones work OK, for maybe another $5 (a few years ago) more the Lincoln Matador (?) nickel plated (?) ones are a little nicer to use and look at and don't rust just sitting in the drawer in the welding cart. I don't regret spending the ~$20 or so on them at all and would buy another pair if I lost or somehow mangled these ones.