While it's fun to bend space and time....it's hard to visualize. Also, you cannot SEE a wormhole. If there's a wormhole in a black hole, it will be in the singularity...from which no light can escape.
Basically, if there's a true wormhole in this game, it'd have to be surrounded by a black hole, which DOES in fact create that distortion....and also comes with gravity sufficient to spaghettify you----yes, that's an actual, scientific term---and an intensely radioactive accretion disk of superheater matter.
Assuming, of course, that this black hole has devoured something relatively recently on the cosmic scale. If it hasn't.....it might just be pure black.
Sorry, had to go all astrophysics-y on you. It's required