With Hydra Omnivore, you can send attack any opponent where it will definitely get through (someone with no blockers, for example) and every opponent takes the hit
Hydrapple exs Syrum Storm is the main damage dealer, which will gain an extra 30 damage for each Energy attached to all your Pokemon
Taking two turns in a row is undoubtedly incredibly powerful, especially in a format where two- and three-prize Pokmon make up the bulk of attackers
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This, most commonly, is seen in sacrifice shells when it does show up in constructed to try and make the Citadel as consistent as possible
The deck is quite reliant on getting Abra in your starting hand, so it's a bit of a gamble at times, but once Alakazam is in play it is a solid Pokemon that can deal decent damage, with Psychic requiring 3 Energies to be attached and dealing 60 damage per turn, plus an extra 30 more damage per Energy attached to the opponent's Active Pokemon