ward spell base {any ward-summoning spell other than Healing Ward?}

im making a hero that have 2 spells that is supposed to cast a healing ward and a mana regeneration ward. i used healing ward(item) for the healing one and healing ward(witch doctor) for the mana one but it dont work so i wanna know if there is another base spell that i can make the mana one from.

Any summoning spell will do.

Thanks i tried whit the serpent ward and it worked.+rep
Mods please put the prefix to solved.