COMBAT
World boss
A world boss is a single shared target that everyone attacks and nobody solos.
The damage cap
No single battle can take more than 20% of the boss's health. That cap is what makes it a group target rather than a race won by whoever has the largest army. You cannot burst it down; you can only take your share.
The toll
Every 4 rounds the boss collects a toll, hitting back at 10x. A squad that could survive a straight fight can still be wiped by staying in past the toll, so the skill is in knowing when a run of rounds is over.
Where it appears
Bosses walk a ladder through the Frontier, the Wastes and the Deep Wastes. A boss in the Deep Wastes is worth more and is also sitting in PvP ground, so getting to it is part of the fight.