I am asking those who have taken part in discussions of Great Whites and Elephants if they are interested in giving their opinions. This is in a realm where the Elephant can run across the ground while the shark can "swim" through the air, but can go no higher than the Elephant's head. Both are at their usual strength and speed.
In the greeting you have on this message wall, you spelt welcome with double Ls, that is wrong. And the W is not in caps, that's a violation to the grammar rule that stated the first letter should always be in caps. Also, don't use comma on the end unless you have something else to say. If not, use period/full stop.
Rain Shield is a rod that is placed on the ground that will block the rain from falling in Minecraft. All over the world. Assuming the MC world is at the tippy top of 5-A, this could come out rather high.
Lens of Ultimate Destruction/Lens of Certain Death/etc are lens that destroy beings on an atomic level (they are added to an atomic reconstructor to change what things are, so this is viable basis for atomic destruction). Ultimate Destruction destroys all blocks save for bedrock and similar blocks within a radius of about 4 meters (so a 9x9x9 accounting for one block in the dead center). Using iron blocks as a standard, that would put this at a low-end of Town level (4.257x10^13) using atomization, meaning this is the more likely outcome, but values could get as high as Small Country level (4.882x10^21).
There are obvious mods like Godzilla mods and such that just create creatures that are vastly superior to the Ender Dragon, so anywhere in upper Tier 7 befits them.
The boss of one mod creates an entire dimension in an empowered form- At least 5-A as the dimension as we can explore it is as large as the Minecraft world (that is, we cannot find the end of it). Could be Low 2-C, but not guaranteed.
And like I said, there is a mod that has an item with a chance to destroy your save and thus wiping out your universe. I would classify this as At least Low 2-C, possibly 2-C (depending on whether or not you consider the Nether and End).
Just some stuff I dug up from what I watched on YouTube. Both the Rain Shield, Lens of Ultimate Destruction, and the Chance thing (last one) are from the Sky Factory modpack. Been watching it on LetsPlay.