to deal with the clones, there are two basic strategies to use. the more common one is to go tm manipulator followed by cc to lock out the clones and kill them before they can get a free turn, but you can also go tm manipulator straight into def down and AoE attacks if you have a strong enough nuker.
astranyx also has two major strategies. you can either run several tm decreasing champions to keep her fully locked out or you can just bumrush her with a team of strong dps champions. the first one will be the easier of the two, both in general and for you specifically.
just looking at what you have here, i'm thinking aim for something like lyssandra, deacon, alure, armiger (you may be able to get away with someone more damage-oriented like coldheart or fahrakin) and one really strong nuker that can effectively oneshot your clones. unfortunately, i don't see any great candidates for that slot right now (rathalos seems like your best currently, but he's the wrong affinity against most of your team) and you may have pulled better options before you can finish that setup, but it's something to look toward. lyssandra in particular will be your friend for this fight. she's one of the best champions for both aspects of the fight, so getting her up and running will make running this a lot easier.
for now, if you still want to grind dark fae, i think your first team might be able to do it with some tweaks. either increase deacon's speed or find a slower cc champion (maybe do that anyway? what's skarg's speed at?) so he's the first to act and if you're not able to fully keep astranyx's tm down, maybe drop magnar for venomage to keep her from healing back up.