Undead Suggestion: Meatwagon Blight Bomb + Tweaks to Skeletal Mastery?

Hello! New PTR just dropped and there are some really exciting and fun changes. Humans with Slow Orb, Huntress Changes, Taurens continuing to be tuned. But what about us Undead? We get a lot of flack for being gloomy and for the countless glorious battles won by our emperor, but believe it or not, we like to have fun too!

In my opinion there is one build for Undead which could use a little nudge, is widely considered "fun" for both the UD and the opponent, and currently does not see much representation in top level. Necrowagon.

So let's get to cooking! All numbers are not concrete; more good-sounding placeholders and open to adjustment.

Blight Bomb - Researchable T2 from Slaughterhouse - 50 Spell Damage within a 100 unit area, depositing blight in that area as well. 30 second cooldown, 45s research time, 75 Gold 50 Lumber.

Essentially, one of the problems with meatwagons[and siege units in general] is that siege damage is a finicky damage type, and not all that useful in combat situations. This solves the issue two fold: by allowing the Meatwagon to contribute some damage to the fight, even against typical army compositions, as well as some minor support in the form of blight regen while allowing UDs to play more with their premier unique race mechanic. A new ability is pretty strong, and I agree with the premise that siege units are best slow, especially ones with transformational abilities, so might suggest to those skeptical that reversing the 2024 speedbuff may be in order, so as to make this now more valuable unit more vulnerable and punishable on exit.

How does this directly impact Necrowagon other than just making meat wagon better? This is where Skeletal Longevity comes in:

Skeletal Longevity no longer gives a direct bonus to skeleton duration. Instead, the rate at which Skeletons duration decays is reduced by half while that skeleton is on blight, and while the skeleton is on blight, it has 50% resistance to dispel effects. This effect would not effect Skeletons raised with Skeleton Rod or Book of the Dead, which would remain unchanged. Instead of casters outright dispelling and winning against Raise undead, it now becomes a battle of the UD player attempting to spread blight, and the opponent trying to remove it.

If you dislike the suggestion, I'm genuinely curious as to why and how you feel your concerns could be addressed if a similar ability were to be added to the game. Feel free to play with numbers or dunk on my idea in the most zug-pilled way possible.

Edit: Adopting u/ZeroKx suggestion to remove the spell damage and instead to have it spawn a Skeleton.

In addition, make Blight Bomb also consume a corpse(Intent being to add just a bit more barrier to entry for dk/lich/ghoul/destro and similar meta builds, requiring exhume corpses or better Corpse management.).