He can be a kind guy ! Or would he betray them ?

Infinite's power is ideal for this scenario: he can send his clones to the colored floor to attack others, without risking himself.

I think he gains more from making people trust and depend on him, than tricking and hurting people.

There *is* a reason why he's kinda in charge of a gang.

So here's a thought: I know a common idea is that Tobi is from a different timeline, and that is why people can't find her country of origin. But what if instead she is from a different plane, or planet, or whatever? A place where magic was less used and tech was?

A refresher: http://neorice.com/hoh_tobi_556

Infinite's plan is pretty solid, all things considered. Although I think he has a secret rule that penalizes him for any deaths and/or benefits him if more people survive.

Also, remember http://neorice.com/hoh_tobi_1197. Someone in the group has no kill penalty, so those black squares aren't as risk-free as they seem.