some more work on sepulchral crawlers and "spiders", which i might call "striders"
also a [turret / assembler], (top), which is a stationary unit often serving as a turret, but which you can socket other spells into: it can deploy a bridge, light a room, buff you, plant flowers.
ALT a grey stone indoor or subterranean diorama with three long, leggy skeletal undead, right, two small ones which are a bit like orb weavers, acephalic, with sculptural bodies in a set of radial limbs. at the top are two turrets, one firing and one not. they look a bit like tripod mounted lamps or bacteriophages. a purple ooze and a knight are provided for scale and context.