I know I rail against comparisons during spoiler season quite a bit, but I feel people are missing an obvious consideration here:
When I search my collection for token generators in Black, I get Aphemia, Woe Strider, Sling-Gang, Haunted Dead, Liliana tLH, Kalitas, Pack Rat, Grave Titan, Bitterblossom, and Bridge from Below. I play a lot of formats and a lot of jank.
Black does not have a Vintage quality token generator outside of Bridge from Below (which has very narrow applications) and therefore this card opens up new space to explore. Black is definitely a color that can use the tokens well and strategies similar to Grixis Pyromancer become possible in combinations outside of Grixis.
The Ward ability is a bit discounted here but turning your counterspell on their removal spell into 3 damage and a 1/1 is not negligible.