"You're talking about a very powerful synergy, between enforcement and regulation, that has enabled us to develop unique expertise," says John C. Killorin, the agency's principal spokesman.

But, oddly enough, a powerful positive synergy emerges when pajamas are added to the other ingredients.

The effort to encourage intra-company deals results as often in unpleasant compromises as it does in powerful synergy, executives said.

We believe a Worldcom-MCI transaction offers compelling financial benefits and powerful synergies.

"We think there are powerful synergies between the three of us."

Indeed a good fit between a person's preferred cognitive profile and his abilities can create a powerful synergy that outweighs the sum of its parts.

The thing that really makes Weave compelling is that it demonstrates how the Mozilla platform can create powerful synergy between desktop and mobile environments.

"The campaign, to use the s-word, represents a powerful synergy," said John Sykes, president at VH1, a unit of Viacom Inc. in New York.

But combined with a team spirit, it sets the stage for a "win-win" style which can create a powerful synergy.

Aggro-control-combo decks combine efficient, creature-based damage, heavy disruption elements, and an ability to unleash an extremely powerful synergy that can end the game in "combo" fashion.