He wants so so badly for people to buy that he's come up with his own language/alphabet, and that he's more comfortable with it than his own native life-long alphabet. Not only is it just plain English using one-for-one symbols as un-clit points out, but dude clearly has no understanding of the history of how signs and symbols are formed in alphabets and is just making up shit he thinks looks cool. It's English and has nothing to do with Romanian (a "strigoi" is sort of like a vampire in their folklore), and there are symbols in it referencing a fucking rock band. This is exactly like if I made up an imaginary alphabet and called it "Dracula" and put Marylin Manson symbols in it. Which would be kind of cute and precocious in a cringey way for an eleven year old. "Nuh uh, it's EASIER for me to write like this!!" Sure, dude. Bro is so stunted, did his uncle or somebody bad-touch him? Not joking, he's got a serious case of arrested development and it looks like it probably happened between 10-13.
