Not according to your religion...
The Catechism of the Council of Trent states the reality of the Mass being the same sacrifice as that of Calvary. It is only the form that is different, where one is a bloody sacrifice, the other is done in an unbloody way, but the sacrifice is still completely the same
Your religion says your Mass is a re-presentation of the Crucifixion, NOT the Last Supper...
You are RIGHT, sir (or madam.)
Excellent, as usual.