That's the view of the players who blasted the ball past Fraser Forster four times on Wednesday.
They want to underline that superiority in the return leg at Murrayfield next week to move into the play-off draw and consign the Hoops to the Europa League final qualifying round.
Jakub Kosecki was the sub who pushed the score from 2-1 to 4-1 in the last section of the match to leave Celtic with a huge challenge.
The wide attacker believes Ronny Deila and his men were architects of their own downfall.
Legia and their manager, Henning Berg, went into the tie under pressure from unhappy fans after struggling for a late equaliser in their last home match in the contest, against St Patrick's Athletic.
But by the final whistle it was the Celtic supporters in Poland who were asking serious questions. Kosecki said: "I knew it was going to be an easy game for us if Celtic took us lightly, and I think they did … We are able to beat every team if we play 100 per cent.
"Not everyone appreciates us, but I'm confident, although it's only half-way for us with Celtic.
"We have a good lead, but we can't take them lightly in the second leg. We must play as well as in Warsaw, maybe even better, to get through."
The leader of the Legia attack, Miroslav Radovic, agrees, and warns Celtic that Berg's side has overcome a sticky start to the season.
The 5-0 second leg against St Pat's in Dublin was a catalyst.
Radovic set Legia on their way against Celtic with two goals and has now scored in all three of Legia's qualifiers.
He said: "After St Pat's, I knew it could only be better and that it was going to be easier against Celtic."
He added: "The red card for Ambrose was a key moment. From that point, we took control."