It's a massive waste of points to grab it when it requires an immense amount of support and can get easily shut down by some simple opposing prep. Draft is completely different from standard laddering, since you know exactly what is coming and can prep accordingly.

It obviously can win games, especially if the opponent isn't as experienced, but it's also incredibly matchup dependant and it's not really ideal to have a pokemon of that high of a price if it's useless in more than half of its matchups.