"Anyone who hasn't banned themselves from Hexes can turn mana into Witch Kisses slowly. For actual ranked magic, it's slow, ritualized, and tiring - like a mile's jog per rank, whether you cast the normal way or reversed. And this isn't a good way to get rich - that strains the veil and it's easy to track. Each rank takes a medium of increasing rarity and expense, or you can substitute Kisses. A twig for a cubic foot at rank one, a large metal coin for two, a fifth-of-a-carat topaz or quartz for three, a fistful of ebony or ivory or some other dead and ancient materials for four, a fifth-carat diamond, opal, or corundum for five."
"For what you can actually do - rank one does stone to mud, clay to glass, iron to tin, or salt to sugar, or the reverse. Two gets you cloth to leather, water to milk, paper to plastic, copper to bronze, and oil to bread. Three does egg to chocolate, water to petrol, or vegetables to meat. Four gets you wood to cheese, air or steel to cloth, or fruit to candy. Five does old to young, water to wine, lead to gold, or flesh to stone. All of those work in reverse."
"And then there's polymorph. Rank one affects living things up to a cat's size and does real animals within a size limit of double or half the mass. Rank two up to a large child, and it can do imaginary animals as long as they're basically mundane. Three, up to an adult's size, still only double the size but shrinking can go any amount down to mouse-sized. And do reshaping of objects with consistent materials. Four, any living thing into any other living thing, from nearly microscopic to a blue whale, or turn creatures into objects."
"Also you can animate objects like Mickey Mouse from rank three, relatively small weight limits. A set of cleaning sponges and dishes that clean by themselves is the typical example of how complex it can get. Rank four lets you do golems, and you can bind spirits or sacrificed humans to make them intelligent - you need necromancy for binding spirits. They're still cleverer than normal animated objects if you don't. And rank five you can duplicate any objects whatsoever, though that doesn't preserve magical properties and you can't make a profit on the medium needed."