The "magical" was gratuitous and offensive (to me, anyway), and suggests you don't get what we teach.
Matthew 26:26 -- Take, eat, this is my body. (from memory, don't hurt me, please.) Sounds pretty close to "bite me".
The accounts include the instruction to eat and the, at least, identification of the bread and the Body. That is the plain meaning of the various accounts.
I'm not suggesting that that concludes the argument. But it seems to me that the side saying it ISN'T his Body has the burden of proof. We're just saying to those who say we never read Scripture that the text sure LOOKS like He's saying it's His body. Yeah, the blood language is less clear. But it's hard to be told we';re biblically ignorant and then to cite a text and have it tossed aside with the argument that He didn't mean it.
If anybody KNOWS what the meaning of His drinking with us in the Kingdom, I'd sure love to hear it. I have ZERO clue what that's about. SOme musings, but no certainty.
Jesus, himself, ate the bread and drank the wine with them
Is that clear? I wouldn't have been prepared to say one way or the other.
In any event to say the Last Supper is not evidence or is not at least related to the claims we make seems to assume what was to be proved.
You really ought to write a gospel of your own. Till you do, this is what the gospels I have say:
Jesus took bread, and blessed, and broke: and gave to his disciples, and said: Take ye, and eat. This is my body. (Mt 26:26)Jesus took bread; and blessing, broke, and gave to them, and said: Take ye. This is my body (Mk 14:22)
taking bread, he gave thanks, and brake; and gave to them, saying: This is my body, which is given for you (Lk 22:19)
my flesh is meat indeed: and my blood is drink indeed (Jn 6:56)
giving thanks, broke, and said: Take ye, and eat: this is my body, which shall be delivered for you (1 Cor 11:24)
"Now if it turns magically into his blood, why would he need to drink his own blood in the kingdom?"
It doesn't happen by "magic", though I can see and understand why some people think this. Rather, The Church teaches that it occurs by the action of the Holy Spirit. By the way, do you know where the term "Hocus Pocus" comes from? :)