Leech on Monk

Hi, I don't get why Monk does not have an option to leech all damage types? What is the point of having mana and ES leech if I don't have any option to attack with phys damage if I want to fallow monk skills? It is mainly cold and lightning. There are less then few options on phys skills and they are not reliable.

Also leech does not work at all.

its the issue i been having, cant use leech due to the 60% phys conversion to lighint of the tempest furry, and since i dont scale phys damage, the 40% phys cant leech well, "solved" my mana by using clarity and gettign a mana flask wich reffils each x seconds, i think the leech gems should be for all dmg type , not only physical