Project Lanthanide, all in one containment cell.

Don't worry, precautions have been taken incase of rivalries.
But that's the art of Project Lanthanide!
Time for the personalities and stuff
Lanthanum:
Bold and brash, definitely the most violent.
Cerium:
Nervous, definitely cautious and panicky
Promethium:
Caring for fellow fly, resourceful.
Ytterbium:
Planning, acts like a hive mind.
Dysprosium:
Murder first, ask questions later.
Praseodymium:
Surprisingly sweet for such a tough exterior.
Neodymium:
Annoying, guaranteed to get slapped.
Terbium:
Observant, overly stressed at times.
Samarium:
Clumsy though less because Antennae. Also quite chaotic.
Thulium:
Also clumsy, though quite defensive.
Europium:
Overdramatic, theatre kid energy.
Gadolinium:
Mates with Europium, pool lover.
Lutetium:
Bad eyesight, mostly relaxed though.
Erbium:
Sneaky prankster.
Holmium:
Quiet, loner.
Now the powers they got from arthropods! :DDDD
Lanthanum:
Overly strong, extreme grip, toxic poison. Strong and venomous mandibles.
Cerium:
Flight, paralysing sting.
Promethium:
Flight, Strong Mandibles
Ytterbium:
Flight, webs, extremely enhanced sight, instantly paralysing stingers.
Dysprosium:
Food and Liquid storage, extreme grip with horns.
Praseodymium:
Eye targeting spray, overly strong neck muscles.
Neodymium:
Extremely strong punches, Blood Sucking.
Terbium:
Intense sight, stabbing mandibles.
Samarium:
Intense grip and crushing power, air manipulation detection.
Thulium:
Strong Mandibles, Armour.
Europium:
Neurotoxin Sting, extreme scent detection.
Gadolinium:
Extreme swim speed, tough exterior.
Lutetium:
Flight, soul seeing.
Erbium:
Tough armour, strong legs and jumps, cricket-like sound when legs rubbed together.
Holmium:
Armour, strong mandibles.