Dean will join former teammate Kewain Gant at the school, along with Sikeston standout Lontas McClinton.
"One thing we did not do this past year was shoot the ball well," said Moberly head coach Pat Smith. "I think Lezcano gives us three real good things. He's a big guard, probably around six-three, 215. The second thing, he probably shoots the ball as well as anybody we have. Last but not least, he's got a real good court-savvy. He knows how to play the game."
Along with Dean, Gant and McClinton, Moberly has also signed some high profile players outside the area like Carbondale's Maurice Gibbs and Cardinal Ritter's Ken Burke.
Moberly was 11-20 last year, but finished fifth in the nation the year before with a record of 30-7.