Sondage

What do you need in a good team ?

Good Tank ?
Good AP ?
Good AD ?
Tryndamre /Teemo ?
Good support ?

You need two stuffs a good support and a good tank because if the support is great the ADcarry will be great too. and the tank to protect the ADC and you win, easy

Good any of those. A tank is really nice to have at all times, but good ap is great. It's really good to have like a tank, ad, and ap that way everything is a bit spread