I had a humble idea about new "ennemy" on SoT islands, giving up loot, making it worth fighting with.
This plant is inspired by the nepenthes ventricosa carnivorous plant. I just readapted it to the SoT graphic style.
The big one is the mama which keeps loot and spits acid on it's foe's face, while little ones shoot seed balls (similar to the pirate's pistol).
The loot, skulls or other golden stuff, could be kept inside of the big one's belly.
To kill them, pirates would need to use their cutlass, in a similar fashion to fighting Overgrown Skeletons, and wait to make the acid disapear to hoarder the loot without getting injured.
Marmoset Viewer - Carnivorous Plant