sanbey profile
Sanbey is an incubator, but he's somewhat different of the majority of them
First: He have the power for make contracts(like any incubator) but he also have the power for travel between dimensions
Second: Wwhen he's about to make a contract he explains everything, doesn't lie, and keeps the candidate aware of the risks of being a puella magi and when the candidate refuse, he doesn't insist
Third: He belives life as a part of the universe and doesn't approve unwanted sacrifices and see Kyubey's actions as imprudent and risky for the universe
And forth: Of the few contracts made by sanbey, only one puella magi dies.
Sanbey is searching a source of energy for stopping entropy without the need of sacrifices of innocent lives and uses his power of dimensional travel to realize this search.
Dduring his search he enters in a dimension where a fight between a mysterious shadow and the guardian of that dimension was occourring.
Sanbey accidentaly gets burned by the flames of the golden guardian
ragingcatsire