FGO Summer 2019 Event (US)/Challenge Quests

Part I
A Planitia=


 * Uses Calydonian Hunt A: Gains 1-turn dodge and charges 1 NP bar.
 * Uses 明日への希望：Gains Sure-Hit buff and reduced critical damage debuff.
 * Effects from 明日への希望 are removed.
 * Uses Calydonian Hunt A: Gains 1-turn dodge and charges 1 NP bar.
 * Uses 明日への願い：Gains Pierce Invincibility buff and reduced critical damage debuff.
 * Uses Calydonian Hunt A: Gains 1-turn dodge and charges 1 NP bar.
 * Uses 明日への願い：Gains Pierce Invincibility buff and reduced critical damage debuff.


 * Stunning Atalanta before depleting each of her HP layers does not stop her from using the above Skills; she will always attempt to use them on the first turn she can take actions / attack.
 * Atalanta seems to give priority to attacking Mashu and Merlin (may also include other Casters) over other Servants.

B Paterae=


 * At the start of the player's turn, all Servants in the front row will suffer 300 points of field damage. Servants with 300 or less HP will be defeated normally.
 * : Unremovable defence up.

P Fossa=


 * At the start of battle, all front line Servants gain increased Arts performance.

A Chasma=


 * : Gain 10,000 HP for 4 turns. Gain critical down for 4 turns
 * : Gain NP damage up for 4 turns. Gain critical down for 4 turns.

Great Bridge=

Part 2
Basement 1=


 * : Dead Patrol : Gains unremovable "Instant-Death Rate Up" (Higher chance to Insta-Kill with NP)
 * : Dead Patrol : Gains unremovable "Instant-Death Rate Up" (Higher chance to Insta-Kill with NP)
 * Both buffs stack.

Basement 2=


 * : Keen Mind  : Gains unremovable "Increased Resistance towards Buff Removals".
 * : Profiling : Gains unremovable "Debuff Immunity".

Basement 3=


 * : Enemy changes to Nightingale. Gains unremovable "Increased Healing Power".
 * : Enemy changes to Yan Qing. Gains unremovable "Critical Damage Up" & "Debuff Resistance Down". Removes buffs gained in Nightingale phase.
 * Only Yan Qing has an NP-Gauge.

Basement 4=


 * : Staving Off Boredom : Gain unremovable "Increased Chance to Apply Debuff"​
 * : Transforms into Apprehended Pillar (Normal Attacks are now AoE); Gain unremovable "Critical Rate Up"

Courtyard 1=


 * : Removes all party buffs.
 * : Gain unremovable increasing attack damage with regular attacks.
 * Agitating Euphrates : Debuff a random party member with Buster Down, Quick Down or Arts Down.
 * Flooding Tigris : Removes buffs of a random party member
 * NP seals party skill and NP for 1 turn.

Courtyard 2=