I really love the Unyielding ability! It's such a cool twist on the rules to make your tokens less appealing targets, it'll make them harder to destroy and less of an easy point.
The two different ways to score points is also really unique, revealing item cards that you could craft to score one point is really cool and thematic. And scoring where you have large concentrations of pieces really fits the swarm theme.
The drawing is really interesting too, I can't quite picture if it would make it easy for them to get lots of cards or not, but maybe it's a bit of a challenge as you want to have your swarm tokens with your warriors.
And of course, the idea of a swarm of ants animating clockwork animals is just really good! So creative and perfectly fits the theme!