Calling transubstantiation “magical” is bordering on blasphemy since the change takes place by the invoking of the Holy Spirit. Never have I heard the words, “abracdabra” or “shazam” spoken at a Catholic Mass; no one waves a wand to bring about the Real Presence.
No one does in a Lutheran church either.
I once got into quite a spirited debate with somebody about whether the Host could be made of something like rice, rather than wheat. Somebody flat-out told me that it had to be wheat or it wasn't Communion. The net effect of their claim was precisely that wheat properties that no other flour could match.... it was, for all intents and purposes, a claim of "magical properties."
In reality, of course, it was a doctrinal issue about the proper contents of the Host, and it's a great example of what I was talking about above, where doctrine supplants Christianity. Does God really care if the wafer is made of wheat or rice, so long as the communicant approaches the rail in faith and submission? Jesus' whole ministry gives us the answer to that: of course God doesn't care about wheat vs. rice. It's the faith and submission part that really matters to Him.