After returning to the Marvel Universe, Karn took stock of what he had gained in the Hokage Universe.
Sage Mode and natural energy were probably his greatest gains. After returning, Karn tried absorbing natural energy, and the attempt was a complete success. Natural energy existed in the Marvel Universe too. He could keep absorbing it and use the Phoenix's ability to be reborn in fire to strengthen his magic.
There were also the embryos for breeding fire dragons. But once he raised those creatures, they would inevitably attract the attention of various factions. Although he had now established a cooperative relationship with General Ross, dealing with everyone who coveted the fire dragons would still be troublesome.
Especially since Karn had to travel to other worlds from time to time. As for the fire dragon mount, he would wait until he grew stronger, or had cultivated a few loyal subordinates, before letting it appear in the world.
Cursed Seal Jutsu and Sealing Jutsu were prerequisites for cultivating loyal subordinates.
There were also three miracle drugs. Karn had looked over their formulas while in the Shinobi World. The ingredients were fairly common, but their proportions needed to be tested again; without adjusting the proportions of the ingredients in these three miracle drugs, they might kill people instead of curing them.
"I wasn't away all that long. I'll visit the Biological Research Center first, then the company and my house. I wonder how Betty's search has been going."
Karn mentally planned his next stops. Aside from biopharmaceuticals, he could also recruit Whiplash over in Moscow.
The father and son should have been going through their hardest times right now. Whiplash's father, Anton Vanko, had intended to make money from the Arc Reactor, an invention he and Howard Stark had developed together.
Howard Stark