Gythka (5e Equipment)
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Martial Melee Weapons
A Kreen polearm with single or triple-bladed heads at each end. The heads can be made of any weapon materials but is usually made out of dasl, an amber-like crystal made from a mixture of kreen venom and sand. Wood or bone are usually used for the polearm's shaft, however other materials can be used.
When you take the Attack action and attack with the gythka, you can use a bonus action to make another attack with it. If this attack hits, you deal 1d4 slashing damage. You don't add your ability modifier to the damage of the bonus attack, unless that modifier is negative.
If you have the double weapon master feat, when you use a bonus action to attack with the gythka you deal 1d8 slashing damage (instead of 1d4).
Venom and Crystal
The production of Dasl is a well guarded secret among the kreen and is a very special to them. So special in fact that they almost view it as part of themselves and will not often part with it or weapons made of it. The making of Dasl is done by chewing on common sappy plants and mixing their venom with the chewed plant juice, then spiting it onto sand. However this paralysis the kreens venom glands any time they chew it and dose not allow them to use there venomous bite, after a long rest the kreen regain it's use. The Dasl mixture stays soft for about a day and can be shaped by the maker till it hardens. Due to Dasl's composition it must be made into smaller pieces then bound together with more wet Dasl, this still gives a seamless and smooth look but takes time. The time a Dasl weapon takes to make is the weapons weight times 5. For example a Gythka weights 8 lb times 5, this weapon will take 40 days to make. Dasl properties dose not allow for it to make longer weapons like swords or wider/thinner structures like armor, if it was ever made like this it would shatter the first time used. Dasl is best used for short thicker blades like wide daggers, gythka heads, axe blades, arrow and spear heads, and morning star spikes. I have changed some things to work better in 5e and general campaigns. If you would like more info I obtained my source material from this book it is 2e so may things are updated but the lore is sound and good. https://dnd.rem.uz/Advanced%20D%26D%20(unsorted)/Accessory%20-%20DS%20-%20Thri-Kreen%20of%20Athas.pdf