What sort of strategy does everyone have when using this, do you work on getting all your lowest resource artifact planets up to a certain level or focus on 1 planet at a time ?

One planet at a time, i generally get my 10x or 13x up to 15x before my lower ones

Depends for me. I'm not Talth (far from it) but I'd imagine that the ability strategy is the same for all three races.
I'd upgrade my top three planets to the max (gas for research; toxic or volcanic for mining) and then get some of my worse planets up. Though there are some I consider not worth the effort. If you planned on abandoning it, abandon it and upgrade another planet for a cheaper and shorter cost.

I go for one that I can improve after I've taken it as high as I can with my ability. For example...I took a very large toxic planet up to 15x then used an irradiator on it and got a massive 17x. Not sure if this was the wisest of moves considering I could have made a 18x mining planet out of it but I need artifacts more then mining right now.

I've not unlocked Taltherian yet, but I was Kronyn for a few months. Size. The percentage increase per ability use is the same whether it is going from Sparse or from 14x. But a massive planet will give you more increase in points per hour than a large because you can get more stuff on it.

Id keep upping a Colossal Plasma, or the like. The only time VM Metals make sense lol

It's best to first focus on your largest, best planets that have your best artifact production buildings on them, and once they're full, go from largest to smallest of your planets.

biggest first
of same size, expandable first (that means icy, terra etc)

My opinion dont waste ur time makeing planets..cause they will be scanned and taken its just a waste of time.. change race to Konqul..do a lot of npcing build ur mineral production with toxic purifiers and keep stealing planets with ur high Konqul attack..much faster then makeing planets with its 40 hour cooldown timer..

I was a Taltherian and Mylarie for 3 days and gave it up..found out stealing its better and faster= more fun

You can still steal planets plenty well as talth. And you can still also npc. You used the ability twice maybe? Its not an immediate thing. If done right your arti can go up by a thousand a month.

I plan to use it to even out arts with another production and use terraformers to get them up to 15x. Ones with planet transformers suc as icyies, deserts, terras, barrens first, then move on to making 15x art 17x plasmas . I plan to make them all Colossal in size or bigger to maximize the output from the planet.

size then resource then arts (spires work best on icies, deserts, terras and their transofmations)

Simple calculation to work out how much 'value' you get from each upgrade. once you have the 100% bonus from having the planet for 5 days each richness level gives you 0.5 multiplied by your buildings basic production (then multiplied by excavator and or hoveroid bonus).

No matter what your GF tells you size matters. If you have lame planets abandon them or ignore them only use colossal or mega-colossals. On a colossal with cheap (replaceable, easily available) buildings you get just over 50 production so every upgrade gets you about 25 AP/h. if you use rare artifact building you may manage 60 basic production so you get 30 AP/h.

Upgrade a smaller planet you will likely only gain 15-20 AP/h but you need far less defense so its not totally bad. But if you can afford 5gcash it would be very easy to abandon it and scan up something better.

^^^
Wasn't that in Toastar's guide?

Planet Size: Small Av. Larg3 VLG Mas. Vmas. Colossal
3x Megarich: 202.5 225 240 292.5 315 330 382.5

Yes you could but most good planets are well defendet and you will need that extra attack to invade them.. my artie production is 18k per hour and got it that way just from scaning, stealing and legion members alerting planets I think you could increase monthly a lot more just buy takeing planets then 1k artifact production the hard way.. plus all the fun that comes with it... also if you lose a planet it would not hurt as much since you stole it

Anyways thats just my opinion

in about 50 ranks i upped my arti 4k over half of which was from stolen planets. i did this while not konqul. there are plenty of planets out there that arent defended as well as they should be.

nice..

also so you know most x15+ mega planets have over 20k+ including legion bonus so that 20% of extra attack always comes in handy

im still gonna have very little chance with the bonus. not that i scan any that good ever.

QBV the pop and grind it out to get it under 100 for Sabs, or CCM it, works fairly well

I first started doing all my Arties:
Then they started getting attacked I should have not been surprised. Had to defend and do a bunch of TempFlux.
Now I check the production # and Temp Flux the planet with the highest # then build it up to 15x.
Then move on to the next one.

I'm currently enriching a VM Gas to make into an AP Plasma - it takes a while, but that gives me time to add a lot of passive att, def, cloak.