I do feel guilty as all I do is ask for IDs. I love my cacti but know very little about them. This one, again, sold as 'Cactus'. Even with my limited knowledge I know that much.
Nope. Cactus lookalike called Euphorbia ferox. Or a hybrid of it anyway. Not spines but modified flower stalks. Also toxic latex and weird small flower. It is succulent though.