Haven't seen that sort of thing happening but have you checked for some sort of pest? I have an Alocasia "Vietnam Mutant" which has 'screwed up" leaves, but they're all the same. With a normal plant producing the odd leaf like that most likely will be some sort of problem.

In all my years of growing EE's I've never seen anything like it, Is this their first year in the ground? The one in the center picture is kinda cool looking though

Wow. What USDA growing zone are you in? I do wonder if there is something in the soil like concentrated minerals, windfall from a nearby lawn treatment, or something that spilled there years ago. That would be nice if you have 2 reproducible mutations. Both look interesting. The Illustris has the frost-like patterns between the veins like the Colocasia Madeira has. Those patterns are why the Madeira is on my wish list. The Macrorrhizos leaf looks longer and not necessarily narrower. It somewhat makes me think of the new leaves on my C. esculenta 'Black Magic' runners. They look like the narrow Alocasia 'Tiny Dancer' leaves. But they eventually get larger and normal looking. Here is a photo of one:

Jay,

I'm in Z7 as well, Jersey Shore. Aside from my amended beds (compost, bagged topsoil, and peat) there is nothing but sand here so anything that enters the soil doesn't stay there for long. I know exactly what you're talking about with the Black Magic runners. The strange thing about these is the plant to the left in the first pic is is an offshoot from the same parent in the same year. That plant has clearly recognizable Macro leaves while the one to the right looks like nothing I've seen. The newest leaf on the right is almost cup shaped. I'm going to make sure they don't get lost in the mix when I start digging all these up and next year I'll show them a little more attention. It's a long shot but maybe I have something good.