Rearranging the letters of 'Anagrammatically' (Anagram adverb) gives:
Magically a mantra.
(by Jim Banholzer) (2017) (pending approval)
Other related anagrams without their own page:
"A manically presage William Shakespeare" -> "I am a especially weakish anagram speller." (by Jim Banholzer) (2018) (pending approval)
"Arif Fachrudin - Ponorogo - Jawa Timur - Indonesia" -> "Contoh anagram dia jadi isu ne WN RI or FPI or UFO." (by Arif Fachrudin by hand) (2011) (pending approval)
"Arif Fachrudin - Ponorogo - Jawa Timur - Indonesia" -> "Roso Jiwo Rogo Fidin Nur Fidihana nate pacarmu." (by Arif Fachrudin by hand) (2011) (pending approval)
"The town crier." -> "Went rhetoric." (by Jim Banholzer) (2017) (pending approval)
"Talk too much" -> "Math lockout." (by Jim Banholzer) (2017) (pending approval)