Snakes... Why did it have to be snakes?

On , In the first grid, the second row, second-to-last letter was changed from a C to an N. The spreadsheet remains unchanged.
On , An optional colorblind-friendly grid was added to the spreadsheet.
On , The optional colorblind table we added had some colors marked as "silver" rather than "grey". This has been adjusted back to "grey".

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You enter the chamber and, to your horror, see a bunch of snakes slithering around! Carefully, you trace a path around them. But then, some of the snakes crawl off towards their nest (as shown in second illustration below). You figure out the proper places in the nest to examine, and find... well, à quoi t'attendais-tu?
Snakes on the Floor

The Snake Nest
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26 COPPER SPITTING KNIFE MASKED FANG 12
15 DEADLY BELLY CREEPING IRON KING 24
14 BLADED RATTLER SILVER PYTHON TAIL 16
23 RED SPEAR VIPER HOODED VENOM 21
10 MOUTHED SILENT SWORD HEAD COTTON 13
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