The "big 19" basic explanation – Vaporeon (week: 7-2) – Still useful (against Blissey) in some ways
Vaporeon week: https://pokemongo.gamepress.gg/q-a/big-19-basic-explanation-vaporeon-week-7-1-solid-attackerdefender
Vaporeon is still useful, but far from perfect, when against Blissey.
The Battle Odds: GO's analysis states that Vaporeon has an about 27% chance to win against a similar level and IV Pound/Psychic Blissey, and has about 3% against a ZH/DG one. Compared to Machamp, which beats Blisseys faster, has only 17% chance against a Pound/Psychic one, and even 2% against a ZH/DG one.
However, a single level 30 Machamp is able to beat a Pound/Psychic Blissey in time, with a 4% chance to win, it can't beat a ZH/DG one. While Vaporeon isn't able to beat any of the Blisseys.
Assuming the Machamp has Counter/DP and the Vaporeon has WG/HP as their movesets.
Next post, is still Vaporeon!
Answers
Vaporeon should really only be pulled in for the Tyranitar and Rhydon matchups. Here is where vape truly shines and I think she is the most powerful (speed to health ratio) matchup in both of these.
Of course, Vaporeon is also great against the fires, but I think Rhydon may actually have a bigger advantage here (worse moves better stats).
Against Blissey, Vaporeon is not so good simply because it is borderline offensive capability against a neutral matchup...a 205 Attack with water gun/hydro pump is not going to win many fights. Still works against snorlax due to snorlax's much lessened bulk compared to Blissey, but still a chore.
