Prof challenge format: Duotype Best of 3

The challenger will face me in a best of3 duotype matches. Both sides must use a different team in each battle. The challenger may use any combination of two types on each team, no restrictions.

Duotype is a similar tier to monotype with the only difference being that two types must be used on a team. For example, 2 Ice types can be paired with 4 Rock types; 3 Fire types paired with 3 Rock types; or 5 Grass types paired with 1 Psychic type. The premise is the same as monotype in terms of team composition, but 2 types must be used on a team instead of one type.

Sample teams: https://pokepast.es/e7603a7a2777f351