World Boss appears weekly for 48h at a random map location; type rotates weekly (4 types). You can never lose and take zero wounded; ranked by individual and alliance damage. It recovers HP when it relocates, so you must deal 100% before it moves. Rewards (map treasures) drop at HP 80/60/40/20/0%. Attacks: 5 free/day, then gem 'chances' (200/400/600/800/1000 gems for chances 1-5). Rewards per hit are proportional to damage (gems + gold, e.g. ~1.47B damage -> 3,487 gems + 697k gold). Damage tuning (differs from normal hunting because wounds are zeroed): use high-level MOUNTED cavalry but ADD lower cav tiers too (no wound penalty; sometimes more low-tier does more total damage); max march size; raise mounted Atk/Def/HP (defense+HP now matter because the fight runs until wounding hits 0.8%, or 0.4% with Monarch Talent Lv6 Mortality -> more durability = more attacks = more total damage). Type exceptions: vs Bird of Hurricane use GROUND troops, vs Thunder Scorpion use RANGED troops (they out-damage mounted). Effective debuffs per boss: Hurricane Bird = Ranged Atk/Def, Thunder Scorpion = Mounted Atk/Def, Behemoth King = Ground Atk/Def, Lord of Lava = Siege Atk/Def; max debuff reduction 250%. IMPORTANT: against-monster debuffs (Sanada-type) do NOT work on World Boss -- only normal buffs/debuffs. Sub-cities can join solo (their mayor debuff + Monarch Talent Lv22/35/40 sub-city stats add small damage); a rally (keep 36 + rally-buff research) can beat solo but sub-cities can't join a rally.
Original research source: Evony Guide Wiki
