I always keep one on hotbar 3 settings stun, kill, and the best setting heal, uses element as ammo. But comes in handy if your dino gets stove up
Tek Phase Pistol
Shoots plasma beams with varying intensity and effect, at a cost of Element.

Recipe
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To make Tek Phase Pistol, combine Red Gem, Polymer, Metal Ingot, Crystal, Element, Black Pearl, Blue Gem, and Green Gem in a Tek Replicator for 10 seconds. The Tek Phase Pistol unlocks at level 118 and requires 55 Engram Points.
Spawn Command
We need too many gems for this construct