Note: I will be primarily discussing these card's implications in non-rotating formats, so please keep that in mind
Dromoka's Command ranks as the best fight spell, offering versatility with multiple modes and instant speed
There are typal themes, graveyard themes, spell-based themes, combat-based themes, and more
It has hexproof, to shrug off spot removal (including enchantments like Detention Sphere), it can regenerate from combat damage or boardwipe effects, and it can't even be countered on its way to the battlefield
"The 7th graphic designer / illustrator Atsuko Nishida"
Not to be added in full, but you would most likely see Dimir decks use at least two, which is a perfect number for the constructive modes of his loyalty abilities