I'll explain the potential of bilocation in and out of combat.
I have a witchwarper which at lvl 17 is ideally gonna deal 250 dmg per round without crit. It is best used from afar as an ambush.
So, I'll have a coil rifle, assassin with flash suspensor and silencer.
The 1st round I cast Bilocation, 2nd round Greater invisibility, 3rd round haste (you can start shooting in the 3rd round with double shots and from the 4th round thanks to your haste you can make 2 full actions, which means 4 sniper shots with this weapon...
Now if you have all feats for attack and dmg bonuses for sniper you will have:
12(base)+8(dex)+2(weapon focus, sniper)+2(stealth)-2(deadly aim)=20
This could be further increased with a wisp ally (+2) and an envoy's improved "get 'em" (+2) and a "coordinated shot" (+1) if one of your allies has it, Accurate fusion (+1) to a total of 26 attack bonus.
If you attack twice then to a total of 22 attack bonus
Ideally, if you manage to get them with all 4 shots then your dmg would be: 48d6+92 P
All this dmg could be further increased with an "ambuscade" feat for the first round.
You may want to have "far shot" too so you might do this from really far. (with less atk ofc)
You would surely remain in stealth if you max it as a ysoki for e.g. because you get 17(base)+8(dex)+3(class skill with feat)+2(racial bonus)+5(witchwarper insight bonus)+10(invisibility bonus - invis gives 20, shooting reduces it by 20 but due to flash sus, and silencer, only by 10)=45 .. you are surely gonna be able to hide with 45 stealth modifier.
This is the only way (that I know) you can make 4 shots in a round with a sniper.
Other than this, you can cast a spell and still make a full attack which is also pretty OP if you make your spells strong as well.
The spell is also really useful for exploration. You could use it with teleport to the internals of a dungeon or get a glimpse at a place where you probably won't be welcomed or simply to spy. Just get lots of stealth and invisibility and you are good to go. whenever you have seen enough (or you have been spotted) you just cease the spell and make the one in safety remain real. If they catch it, you can still just end it. But if you are afraid of this kind of sneaking, then you can also use "Akashic revival" as a witchwarper to ensure your safety. You could even steal things like this without having to worry about the consequences.
If you disguise yourself and then duplicate yourself then you won't even be recognized if you are ever seen like this. Bilocation saves you from a lot of trouble.
There are soooo many possibilities in this spell. You just need to combine it with other stuff.
So I would say Bilocation and Akashic revival are by far the most broken spells in starfinder if you play them smart.
Akashic revival needs no explanation.
The best spells in the game have one thing in common. They all have this in their description: "Saving Throw: none"
Maybe even: "Spell Resistance: no"
The ones that will happen no matter what you or the enemy rolls.
If you use only these kinds of spell, you can make your spellcaster become a sniper and use spells to advance your fighting style or to survive (teleport, flight, mislead, invisibility, etc.)
And a withcwarper has some ways to avoid dmg and negate spells. You can make a spellcaster become a weapon user and still be strong AF.
Go, check it out now!
