Quest of the Goblin Lord is practically required in a Goblin deck.
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Why is the whole deck singles? Are there rules against using more than one of a changling?
That seems like a good thing to remove. It almost feels like Alpha Kavu is in here because it's a Kavu. It's effect doesn't seem like much of a useful one to have. I like Thunderscape Familiar, it does good stuff
You should add Thunderscape Familiar. It costs 1{R} and makes black and green spells cost 1 less. And it's a Kavu :)