Plus, you get to draw a card whenever these creatures deal combat damage to a player
The plane of Dominaria was the birthplace of the shadow mechanic, so maybe well see shadow again on a return visit, but its a fairly small possibility because R&D avoids putting parasitic mechanics (i.e., mechanics that only work with themselves) in modern sets
On top of being a very curve-friendly card, because you can play it on nearly any turn in the game with ease, it also has flying and haste
Ugin, the Spirit Dragon It seems fairly nutty to have Ugin only at sixth on this list as he seems to be the complete package
Simply crew your vehicles, move to combat, and then cast this spell for a game-ending play
Regrettably, Tithe is on the Reserved List, so it is ridiculously expensive for the effect you get, but if you want an inexpensive alternative that is slightly watered down, Gift of Estates plays reasonably well, trading instant speed and doubling its mana cost for a guaranteed 3 plains cards