The sentence in question is: カズマの発言にいきり立つ、ゴブリン並みに短気な二人。
I get first part of getting angry at Kazuma's statement but the second part has 2 things I don't quite get:
1.並み after the word goblin, the word has so many meanings on Jisho but I'm not sure which, if any of them actually fit here.
2.The sentence ends in 二人, which is a noun. Based on what I've learned, shouldn't the last part of a sentence always be a verb?