Well, it might be better to give the BASICS of a decklist, for each decktype has a LOT of techs.
For example, Mercury would be:
4 Ralts (Any set you wish)
3 Kirlia (Same here, 1/2 Fire recommended)
3 Gardevoir (Delta Species)
2 Gardevoir Ex (Dragon Frontier)
2 Staryu
2 Starmie (Metal Navigation)
To be filled in with trainers and energy of your likings. If a deck needs specific tools/supporters (Such as RaiEggs needing Cessation Crystal), that can be added to said list.