Note that the beginning of upkeep triggered ability doesnt target the creature, meaning we can put it on one with shroud if we like
Its overloaded effect is insane, and exactly what you need to maximize other, cheaper goad effects
12, around a dozen or so regular cards (no treatments) were worth above $10
Since you can pick it three times, you can choose all three of your opponents in Commander, forcing the table to attack themselves and leave you alone for a turn
This can then be used in combination with Underworld Breach and Lion's Eye Diamond after storming Brain Freeze, but it can also find success with a Food Chain combo or the usual Thassa's Oracle + Demonic Consultation
I also expect this to get better over time with legends entering the cube at a faster rate (per instance) than non-legends