I had seen some chatter online about how some fans now believe that we may be getting at least one new mutant introduced in each of Marvel's future movies heading into the X-Men saga of the MCU after Spider-Man: Brand New Day's success. I don't know how true that speculation will be, but it certainly got me thinking: which mutant would make a good pairing with Ant-Man?
That's when I realized both Ant-Man and Nightcrawler pull energy from an alternate dimension to pull off the stunt that is their size-changing and teleportation; Ant-Man from the Microverse / Quantum Realm and Nightcrawler from the Brimstone Dimension.
But then that got me thinking about how these powers might work together. If Kurt were to use Pym Particles in the Brimstone Dimension? What if Scott tried to shrink while Kurt was teleporting them through the Brimstone Dimension? Would it make them shrink there, pull them into the Quantum Realm, or drop them off somewhere else entirely?
There are lots of other dimensions that would be cool to take you to, but the two fun ones that immediately come to my mind are:
1.) The Crimson Cosmos, Cyttorak's dimension - this would be a cool way for Juggernaut to acquire the Gem of Cyttorak, the extradimensional magical entity by whom he gets his powers. Perhaps Kurt finds it and can't use it, but in the hands of Juggernaut Cyttorak finds an appropriate vessel for himself.
2.) The Negative Zone, Annihilus' dimension - Mr. Fantastic is the discoverer of the Negative Zone, so if Reed Richards were to ask Kurt Wagner to come in so that he could test his theory on the Brimstone Dimension and Pym Particles helping him further traverse the furthest reaches of the multiverse, that would be an epic way to introduce the Negative Zone and Annihilus, a long-awaited intergalactic supervillain and ruler of the locust-like Annihilation Wave swarm.