The plane of Pluto's orbit is inclined 17.2° to the plane of the ecliptic.
View page
The Moon's orbit is inclined by just over 5 degrees to ecliptic
plane.
View page
The moon's equator is inclined 6.7 degrees with respect to its
orbit. (Rotation axis is 83.3 degrees from orbital plane.)
The moon's orbit is inclined 5.1 degrees with respect to the
ecliptic plane ... the plane of the earth's orbit.
View page
The strange things are :
1) Its orbit is inclined at a large angle to the plane that the major planets orbit in. There are several other small planetoids (plutoids) with similarly inclined orbits.
2) There is a very large difference between its least and greatest distance from the Sun. This is referred to as a highly eccentric or highly elliptic orbit.