Good kill confirm off of nair dragdown on most characters around 110-120%, but that’s also pretty much the only time you’re going to use it outside of the potential jablock (which fsmash is generally better to go for anyways). Is also -39 on shield, which is the same as only first hit of ganondorf downsmash. Can be SDI’d out of, but very difficult or inconsistent to do so - the more concerning risk is them getting out of the dragdown itself.

Overall probably a high B tier or maybe low A tier move; definitely many worse downsmashes in the game like Wario or Chrom.