Ok. First of, Swarm abyssian isn’t considered a very strong archetype due to many new global removals and aoes added in the last patches such as: Blistering Skorn, thumping wave, frostburn and many others i can’t think of right now. Just go through the card collection and you will find plenty more.
Second, as far as removal is concerned, abyssian really is on the weak side.
They have some full removals in Dark Transformation and Ritual banishing. The first one is pretty expensive and doesn’t negate dying wishes, meaning it can’t really be used on Aymara healers and such. The second one is only usable in swarm abyssian which suffers from the fact that it is pretty hard to maintain a board in this aggressive meta and is one of the weakest archetypes. Ritual banishing also triggers dying wishes. Abyssian also doesn’t have an infaction dispell OR transformation spell, meaning that even magmar, which doesn’t have an actual ‘dispell’ card but multiple transform spells has better dispell tools. Demonic Lure really is Abyssians best tool for those cards.
As a Vetruvian you even have astral phasing as a pretty good tech card vs demonic lure, not to mention that abyssian doesn’t have much counterplay to aymara. Kelaino is a problem after the siphon nerf, your best bets are starfire scarab and ephemereal shroud.