Often suggests a magical or fantastical change, not just a normal one. The wizard transmogrified stones into gold.
Pro Tip 2/3
Sudden Change
The change is unexpected and abrupt, not gradual. He was amazed when the machine transmogrified the raw materials into a tent within seconds.
Pro Tip 3/3
Literary Flair
Mostly used in literary or creative contexts, not everyday conversation. In her novel, the lake transmogrified into ice during the supernatural winter.