Edwards announced his squad for this year's Championships earlier this month and included a number of players who played a key role in Wales' best-ever World Cup finish.
Last year's Women's Six Nations was a disappointment however as they ended up fifth overall but with the experienced trio of Jenny Davies, Catrin Edwards and skipper Rachel Taylor - combined they have 174 caps - the foundations are in place.
And Edwards has injected youth into his squad with five previously uncapped players called up this year - meaning they welcome defending World Cup champions England next weekend full of confidence.
"Our preparation has been good - the last World Cup campaign was the best one we have ever had so we're looking to build on that," Edwards told Wales Online.
"We've only lost two or three players from our World Cup squad and we've got five new caps for this Six Nations.
"The preparation has been going well and we've got our new staff in too. It's the best preparation we've had to be honest.
"England will be a different team from the one which won the World Cup.
"They'll have a completely different side and have just lost their coach. It's a home game for us and it's one where we need to make things count and take advantage.
"We're confident we can do that and get the win."
England 6-Russia )
England defeated New Zealand 49-46 to level up the three-match Series at 1-1 heading into the deciding match on Wednesday morning.