Theraphosa-ficedula

Whenever this creature deals combat damage to a
non-Wall creature, destroy the other creature at
end of combat.
"the largest arachnid found in the Thistle Nebula and
the second largest ever discovered. It's believed they
evolved to prey on large mammals over the course of a
measly several hundred years after the Boat made its
trip around the Thistle Nebula."
—Bestiary