Post-Crisis Lex goes head to head against Bulma Briefs in an Invent Off.
Each is taken to the Avatar universe (post last season of Korra) and given one year of prep using only the resources they can beg, borrow, steal, encourage, or scrounge from this world. Afterwords, they will be judged on who created the best thing. Points awarded for creativity, advancement (how much more advanced it is than the world they are in), versatility, usefulness, power, and effectiveness.
Which inventor comes out on top? Presume they both start in Republic City.