So this would be Toad and Blob buddy comic with some interesting twists and character developments.
Toad and Blob have kind of fallen out of the spot light since the founding of Krakoa, not that they were ever in it much. Blob still feels the same way about Betsy now as he did in Age of X, but she's been completely uninterested in him since. Toad has the idea that now that they are on Krakoa with all these mutant masterminds, that they could get power upgrades and become big shot mutants to get the girls. So they approach Mr. Sinister, Apocalypse, and others looking for upgrades.
Eventually they get their Mutant DNA upgraded, Blob gains molecular control of his body allowing him to shape shift his body similar to Mr. Fantastic or Kamala Khan. Toad gains more strength and a healing factor, and later finds out he gains the ability to change his sex like some frogs/toads have been known to in the wild. Just like the story line in the original Jurassic Park.
Blob can now give himself a hunky body and starts pursuing Betsy and evens goes on a date with her. But Toad finds himself jealous and turns into a female learning about his new power for the first time and goes after Fred himself. I'd leave where this love triangle goes to the writers. You could cover all kinds of topics with the problems Blob and Toad have been through.
This would set Toad up to be one of the first nonbinary X-Men characters who could swing both ways depending on where his hormones takes him.
You want a little more Blob and Toad?