City head to the Swiss champions in the opening leg of their Champions League last-16 clash on Tuesday as strong favourites to progress to the quarter-finals.
"We always have a plan and get prepared," Wicky told reporters. "For the match, we want to keep our chances high, but I have no real tactical strategy.
"If we, Basel, fight in such competitions, we need a perfect game on a perfect day, playing with a lot of courage. And our supporters need to be there to make the night victorious for us.
"We need a perfect night if we are to stage a surprise. We have to believe, have the mentality that we can do it, but there is no real tactical plan behind it."
Wicky could be accused of adopting a risky approach, but he believes devising a detailed plan would be fruitless against a side showing few chinks in the armour.
"The team has basically no weaknesses," Wicky added. "They show that every three days in all competitions they participate in.
"They are a very flexible team, very variable, and can react very well to the opponent. I don't have to talk about the quality of their player and of the coach as well.