Below is the most obvious Epiclesis in the Roman Mass:
Eucharistic Prayer III
Priest: Father, you are holy indeed, and all creation rightly gives you praise. All life, all holiness comes from you through your Son, Jesus Christ our Lord, by the working of the Holy Spirit. From age to age you gather a people to yourself, so that from east to west a perfect offering may be made to the glory of your name.
And so, Father, we bring you these gifts. We ask you to make them holy by the power of your Spirit, that they may become the body and blood of your Son, our Lord Jesus Christ, at whose command we celebrate this Eucharist.
On the night he was betrayed, he took bread and gave you thanks and praise. He broke the bread, gave it to his disciples, and said:
Take this, all of you, and eat it: this is my body which will be given up for you.
When supper was ended, he took the cup. Again he gave you thanks and praise, gave the cup to his disciples, and said:
Take this, all of you, and drink from it: this is the cup of my blood, the blood of the new and everlasting covenant. It will be shed for you and for all so that sins may be forgiven. Do this in memory of me.