During a visit to the Persian Gulf to show off the latest Stark Industries weaponry, Tony Stark was captured by the enemy and forced to build a new super weapon. Instead (with the assistance of renowned physicist and fellow prisoner Ho Yinsen) Stark crafted the first version of his now-famous powered battle armor. He soon escaped captivity, though Yinsen gave his life to buy Stark the few extra moments he needed to activate his armor.Marvel Source
Since that day, Stark has lived two lives: one as the playboy industrialist in charge of Stark Industries, and the other as the high-flying golden Avenger known as Iron Man!
What to do with the remaining points?
or are both viable. Furthermore, if you didn't feel like going for a 4 ability, putting the remianing points into or isn't a bad bet, as it will increase survability. Then with the remaining points, you could either go into or
Legendary:
Option 1: Gungnir - if you're going for a crit heavy build; would also recommend Ziggurat instead of Metasensory Array and Gem of Kursed/HOD in stead of Beta Particle Reactor.
Option 2: M'Karen Crystal - great amount of spirit, which equals damage, room clearing ability roughly every 20 seconds (in addition to your make Iron Man very effective in X-Def/Cosmics.