step-great-pibling

1. The sibling of one's stepgrandparent.
2. The stepsibling of one's grandparent.

My step-great-pibling is a good person.

great-cousin-pibling

Grandparent's first cousin.

My great-cousin-pibling is a good person.

half-great-cousin-pibling

Grandparent’s half-first cousin.

My half-great-cousin-pibling is a good person.