Initially, it was the experimental nature of the instrumental that grabbed my attention on "Semtex" - I mean it's not often you hear futuristic samples and reverb-washed synths over boom-bap drums and 808s.
The drums also have this off-kilter swing to them and this charms the listener as you're quite unsure how they're going to hit next. Chukwu's authoritative vocal delivery also brought the track to life, especially since he's relentless with his flows in a manner that's raw.
The lyrics take a fantasy-like approach, bringing scenes of witchcraft, shipwreck, and absurdist feats. This is mirrored in the accompanying video in which a scientist discovers my head under a microscope slide before it escapes into outer-space.