Hello, so I am still getting used to the enhancing in the game. I have a few questions:

If I want to put a soul on a unit, lets say a snow soul I have to have 2 units that have it on there? For some reason when I pick the unit to be sacrificed the attributes of it do not always show up as options to affix. Do I just need 2 or more of the same attribute for it to show up?

Can there be say a snow soul 2 or snow soul 3?

Does putting more units with the same desired attribute increase its chances of success? like 3 units with might 3?

Can we put the "mark" ones on units? Like mark anger etc.? Those seem really good.

What would be the best combination for a back unit armor piece for a melee bouncer/hunter? I was thinking might 3, snow soul and maybe toughness?

Thanks!