This can be played both defensively and offensively, either by protecting one of your permanents or to stop an opponent's combo
Giza Plains (Final Fantasy XII) One of the starting areas in Final Fantasy XII
The first Vehicle on the list, Fleetwheel Cruiser hits hard and doesnt need a creature to Crew it the first time it enters the battlefield
Tireless Tracker We have to start here
Since Terra doesnt bring the reanimated creature back tapped and attacking, its a fundamentally less aggressive commander, but the lower mana cost to reanimate the creature gives you more flexibility on the turns you use the ability
When building a list of the most expensive, you have to refine your discussion to either include or exclude these three sets, as you would never make it to a consideration of the expansions or later traded cards without excluding these