Dexiduous the Invincible is an enormous drifter raid boss in Sir Hammerlock's Big Game Hunt DLC.
To Spawn Dexiduous, you will need 100+ Eridium for four totem poles around Hunter's Grotto map.
The locations of the totem poles required to spawn Dexiduous
Pull lever to summon Dexiduous. After you kill a few waves of enemies Dexiduous will finally spawn.
To kill Dexiduous just shoot white glowing spots.
Dexiduous drops are rare, legendary and the unique “The Chopper”.