With the metal, Uru, that emits the same lightning properties as Thor's hammer, Mjolnir, Tony was able to go toe-to-toe with Loki for a brief period of time, because of the magic resistance and its ability to fire lightning repulsor beams. 
Stark did not keep the armor as part of his deal to the forge the armor, required him to give it back to Eitri once after defeating Loki.
- Lightning Repulsor Beams
- Lightning Unibeam
- Comm Systems
- Magic Resistance
- Lightning Repulsor Boot Jets
In other media
In the comic books Tony Stark constructed a suit called the "Thorbuster armor" to stop Thor if he should ever go rogue. This suit was destroyed after a battle in Asgard.
- "A Day Unlike Any Other". Christopher Yost (writer) & Sebastian Montes (director). The Avengers: Earth's Mightiest Heroes. June 26, 2011. No. 26, Season one.
- "The Private War of Doctor Doom". Christopher Yost (writer) & Gary Hartle (director). The Avengers: Earth's Mightiest Heroes. April 1, 2012. No. 1, Season two.
- "Powerless". Man of Action & Danielle Wolff (writers) & Steve Gordon (director). The Avengers: Earth's Mightiest Heroes. September 25, 2012. No. 15, Season two.