So one of my planets recently got invaded, (A VL Toxic 3x rich), by one of the top 25 ranked legion in both strength and rank.

And I got it back. *fist-pump*

It was more luck if anything. Several events collided together which allowed me to invade my planet back.

Now I need advice on how to brick up the planet for an extended period of time.

Defenses: 16680 0 90% 31692
Attack: 500 0 90% 950

2310 / 2310
Population


Currently this are the stats buffed as much as I can buff it.

Any recommendations? Last time it was invaded 2 bio zappers were used so I'm assuming the person will have access to more. I'm only a rank 108 with singularity launchers and rift shields (both first level only) and I'm working on betting the next level of habitats (I'm on the resource buildings before the next one I currently have the +200 pop). My research is only 1,200 ish. Should I research planetary weapons, go for the next planetary shields, or go for the population structures? I understand that best planetary defence can be opinion based and I don't mind. I'm considering all options so any advice is appreciated.

I'll be facing ranks 200-500 with access to Sabs so how do I deal with that?

I'd say shields as it lowers the amount of damage they can do so a high defence means they can only take a few people out rather than 20 and that little amount of attack will slowly naww at their feet over time. High population means they'll need to use more energy to lower it and to sab a planet, the pop must be 100 or less so it gives you a little more time.

I'd look to see if you have any artifacts that boost either attack, defence or pop as sabs cant target them.

don't forget to put 3 lazuli pylons (600 invasion defense a piece, limit 3)
and make sure you're in a legion w/ a high member count for high legion bonus

Rank 108's can't get Pylons. Renegars share at R125.

If a planet is worth keeping. My answer is....
PLANET FLUX

+1