Eohlx is the letter Z and X
Anglo-Saxon Rune Poem (from ragweedforge.com)
The Eolh-sedge is mostly to be found in a marsh;
it grows in the water and makes a ghastly wound,covering with blood every warrior who touches it.
Eohlx is commonly translated as Elk-sedge, a type of marsh plant with fine edges that can cut you, like a paper cut. Definitely not fun to be stuck in, and would probably serve well as a protective measure in terrain.
Esoterically, Eohlx is a rune of protection. Harmful and unwanted forces are kept away with this rune. But it also brings the user awareness and alertness, qualities which help one to stay out of trouble. That flash of intuition which says, don’t go that way, or not this taxi, or, go get your car checked. It also works the other way as well, which is to say, rather then informing you, it flashed to others, back off, don’t mess with me, I am not one to be trifled with. Eohlx is probably one of the most used runes, and the best remembered.