I'm not sure that Babba is right there though - the European Parliament has decision making powers.
The EU’s standard decision-making procedure is known as 'Ordinary Legislative Procedure’ (ex "codecision"). This means that the directly elected European Parliament has to approve EU legislation together with the Council (the governments of the 28 EU countries).
The European Parliament and the Council of the European Union (which is composed of government ministers from each EU country, according to the policy area to be discussed) review proposals by the European Commission and propose amendments (1st reading). If the Council and the Parliament cannot agree upon amendments, a 2nd reading takes place.
In the 2nd reading, the Parliament and Council can again propose amendments. Parliament has the power to block the proposed legislation if it cannot agree with the Council. If the two institutions agree on amendments, the proposed legislation can be adopted.
If they cannot agree, a conciliation committee tries to find a solution. The Conciliation Committee, composed of an equal number of MEPs and Council representatives, tries to reach agreement on a joint text. If unsuccessful, the legislative act will not enter into force and the procedure is ended. If a joint text is agreed, it is forwarded to the European Parliament and Council for a 3rd reading.
At the 3rd reading the European Parliament and the Council examines the joint text and and the Parliament votes in plenary. Neither the Parliament nor the Council can change the wording of the joint text. If either body rejects it or fails to act on it, the act is not adopted and the procedure is ended. If it is approved by Parliament and Council, the act is adopted.
Once both European Parliament and Council have approved the final text of a legislative proposal, it is jointly signed by the Presidents and Secretaries General of both institutions. After signature, the texts are published in the Official Journal and become official.
If a legislative proposal is rejected at any stage of the procedure, or the Parliament and Council cannot reach a compromise, the proposal is not adopted and the procedure is ended. A new procedure can start only with a new proposal from the Commission.
www.europarl.europa.eu/external/html/legislativeprocedure/default_en.htm
europa.eu/european-union/eu-law/decision-making/procedures_en
www.europarl.europa.eu/aboutparliament/en/20150201PVL00004/Legislative-powers
ukandeu.ac.uk/explainers/the-european-parliament/
Council of the European Union - not to be confused with:
European Council - quarterly summits, where EU leaders meet to set the broad direction of EU policy making.
Council of Europe - not an EU body at all.