Conversation so far:
What is Comet?
a hero with flight and cold-generation powers.
Who's pet was Comet?
CANNOTANSWER.
Who were some other "super animals" like Comet?
CANNOTANSWER.
Where did Comet first appear?
Comet was introduced in Supergirl #14 (October 1997).

Question: What are some of Comet's super powers?
Self-contained rewrite: Besides Supergirl #14 what are some of Comet's super powers?