The impending mechanic means it can provide land acceleration and mana fixing as early as turn three, and it can continue to provide value when it attacks after becoming a creature four turns later
The spell's mana value remains unchanged, no matter what the total cost to cast it was
It takes away an opponent's ability to recover from the sweeper with reanimation and recursion effects, which puts decks reliant on their graveyard far behind
But that damage is going to add up: two, then four, then six, then eight and in the meantime everyone is getting to pop off with a bunch of extra Treasure tokens
This leads to an intense rivalry and battle between the two, leading to some truly epic battles, as well as one of the most harrowing scenes in all of video games (seen below)
The vehicle synergies also give the deck some diversity