Can somebody please script me a skill called "Reincarnation" with option of 4 level's

Lvl 1: 20% chance to reincarnate on death
Lvl 2: 30% chance to reincarnate on death
Lvl 3: 40% chance to reincarnate on death
Lvl 4: 50% chance to reincarnate on death


Skill Reincarnate: Chance to re-spawn at spawn on death.

thanks!