These creatures you see on our backs are called Ysalamiri. They’re sessile, tree-dwelling creatures from a distant, third-rate planet, and they have an interesting and possibly unique ability- they push back the Force. A single Ysalamiri can occasionally create a bubble as large as ten meters across; a whole group of them reinforcing one another can create much larger ones.
Thrawn from Heir to the Empire
[@savetheysalamiri campaign]