The back side of the card is not a Vehicle, but has the distinct ability to create both Ravage or Laserbeak, both of whom are tokens that will help trigger Soundwaves free spell ability
However, when it comes to their out-of-the-box power level and capacity for upgrades, some of the Duskmourn precons are a little less The Shining a little more Sharknado
(Remember that the rules for ninjutsu specify that a creature that enters the battlefield attacking because of a ninjutsu ability attacks the same player or planeswalker the returned unblocked creature was.) (2022-02-18) Although the token is attacking, it was never declared as an attacking creature (for purposes of abilities that trigger whenever a creature attacks, for example)
Only for the best reasons should they be broken but I think sticking to them too ridgedly isn't really providing any benefit
It may have started as a Standard sideboard card, but it still shows up in Commander mill decks that want their win condition to be fast and inevitable
No worries, if you're seeking the top chase cards from these expansions, it's more often than not cheaper to just buy the single card