What monster do you think is the best for 2v2?

A team of S ranks Lupas are way too overpowered in 2v2 especially with their speed, Hypnosis+ Elemental moves.. So which monsters do u think is able to beat them?

Well, I think moves that hit both your opponents' monsters may give you an advantage. Wild Fire, Meteor, Tsunami and Razor Leaves are examples. ^^
Lupas can't learn these.