It becomes a staple with commanders like Krenko, Mob Boss or a similar key creature that does heavy lifting through an activated ability
While Vedalken Orrery is an artifact that has long been considered by many to be a Commander staple, allowing you to cast each of your spells as though they had flash, Liberator, Urza's Battlethopter is effectively an aggressive Vedalken Orrery that can live in your Command Zone
Now read Mesmeric Orb
Adding the 26th land in an aggressive deck seems strange for sure, but as I talked about a couple of weeks ago, when you have a lot of assorted Temples, you definitely want more lands
Let me know in the comments section, or lets discuss it over Draftsim Discord
He's going to be handy when you need to make some strong challenges, and he has a really cheap shift cost that can help you get him into play surprisingly swiftly