Thri-kreen

Sentient mantis. Strange, scary folk. Four arms. Like their elves raw. They have poisonous bites, psionics, and they can jump like grasshoppers. They don't sleep, but their lifespan is only 30 years. They prefer double-bladed lightsabers polearms, and make three-sided Xena-style boomerang throwy-things by mixing their venom with plant sap until it hardens. They've also gone through a few different body configurations over the years, starting out as basically praying mantises with hands and moving towards a notably more humanoid bent in recent editions.

First showed up in AD&D in Monstrous Manual, and became a playable character race in the Dark Sun Revised edition. The MM specifically stats the basic thri-kreen, and mentions the existence of two cousin species; the more powerful and intelligent Tohr-kreen ("mantis nobles") and the spacefaring surgeons & bio-artificers called Xixchil. There would eventually be a Dark Sun splat detailing all of the varieties of thri-kreen and tohr-kreen (basic tohr-kreen, j'ez, j'ohl, giant zik-trin'ak, primitive trin, laborer t'keech, female druid tondi), whilst the xixchil would get attention paid to them in Spelljammer.

Thri-kreen are the darlings of powergamers everywhere, as four arms means four weapons means all sorts of crazy builds focused on massive, nigh-unusable numbers of attacks each turn. It turns out four arms doesn't help with spellcasting at all, so they're actually not such a huge deal.

They were recently voted one of the three most-popular races to be added to 5e, perhaps because they're the hardest "core" Dark Sun race to just glue another's template over and call it a day. The designer admitted that doing so would be pretty tough, but that it had to happen eventually.

They're a favourite when some drawfag offers to sketch some erotica for /tg/, and wants to squick us out instead. Well, except for those corrupted by Slaanesh.

Gallery

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  L'original.
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  CHATCHKAS AND SPEARS
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  Long pointy sticks and three-pronged throwing stars.
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  No magic, psionics only, final destination.
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  Knifin' around
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  Hello there!
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  Potions!
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  Oh my!
• 
  The noble paladin Sir Mix-A-Lot once explicated the virtues of a large abdomen.
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  Now with boobs!
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  Now with wait a minute what the fuck
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  Ready for her wedding day.
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  Sleek!
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  You should be ashamed of yourselves, fa/tg/uys.
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  Fa/tg/uys are a bunch of disgusting perverts.
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  But it's okay. She loves us anyway.
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  Is that an immovable rod in your pocket or are you just happy to see me?
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  This is just wrong! Dark Sun dwarves don't have beards!
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  WHAT HAS SCIENCE DONE
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  Thri-kreen girl what are you doing you are not a nurse
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  Drawfag, you got some splainin' to do!
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  Four arms makes for a lot of potion throwing.
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  DATE NIGHT
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  Snack time?
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  SCIENCE!
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  D'awww
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  D'AWWWWWW
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  18 Charisma
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  "I do declare!"
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  90% or gtfo.