An imbuement answers to the id the game publishes and to its slug, and a name
is slugged before it is tried, so /imbuements/bash-1 and
/imbuements/Basic Bash are the same row. The id wins where the two collide.

Both handles carry their weight on this track rather than one being a courtesy:
the key is an effect stem and a digit and the slug is the display name, so on
all 69 rows they are different strings — bash-1 against basic-bash.

category and tier are objects now and type is new, which is a breaking change
on this endpoint. category was the bare slug and is {slug, name}, the slug
unchanged; tier was the bare integer and is {slug, name, rank}, the integer now at
tier.rank. type is the name with its tier word removed. Nothing else moved, and
?filter[category]= and ?filter[tier]= take exactly what they took before.