Still, there are better non-Vehicles eligible as commanders that do similar things
It's a kill-on-site creature, otherwise, the game's probably over
Since it costs three mana and suspends with three time counters, you generally wont be able to cast Inevitable Betrayal until turn six in most cases, but thats still fine depending on which card you get from your opponent
Commanders Sphere is generally considered the baseline: it only taps for one mana, but its one mana of any of your decks colors, and you can always sacrifice it to draw a card
Unless your opponent has two creatures, who isnt going to block it
A quick Google search doesnt yield an obvious, definitive first oversized Magic card