Shortly after Abaddon's Asura Domain spread out and covered a large region of space around himself, it became impossible for Vaan to repeat the same trick on him.
He wouldn't be able to create space portals within the crimson domain.
More importantly, if he found himself caught in it, it would also be difficult for him to escape with his life.
Entering Abaddon's Asura Domain was akin to a prey getting stuck in spiderwebs.
Fortunately, Vaan had the Earth Spirit Worm to distract Abaddon. Between them, Abaddon was definitely the more appetizing target due to the powerful blood energy contained within his body.
Boom!
The Earth Spirit Worm tried to swallow Abaddon in one bite, but the latter shifted to its side and shattered its entire head with a single smack.
Glaring red, seemingly diabolical runes coursed around Abaddon's body like an energy circuit, granting him unparalleled physical might, among other yet-to-be-discovered benefits.