At this point the only team runes that I keep are speed and gold. Everything else gets converted into speed. I used to keep team strength, but it seems that with the idea of roles where one monster is a attacker, denier, or supporter, there is not often a need to do anything more importantly than GO FIRST.
Do you agree? If not, and especially in the case of team strength (because I can't think of any valid reason to have team life or stamina) why combination of monster needs that extra strength?