Interceptor, Shadow's Hound There are a couple of good dogs in black, like Snarling Gorehound but Magic has less than 20 black dogs all told, so a mono-black commander can lead a really small pack
It is also one of the more commonly hard cast things you play in these lists being cheap and not that colour intense
I was a Warhammer player before I was a serious Magic player (even if I did own some Magic cards first) and seeing new art in this setting that I love is great
Umezawa's Jitte 5.5 This is another example of a very powerful card significantly under performing in goblins
Normally, if a creature attacks, it cannot block the next turn
Of course, you will have a number of creatures that are expendable, like Solemn Simulacrum or token creatures that'll swing your way