Ancient-Part Drop Rate is a weapon seal in Hyrule Warriors: Age of Calamity. It increases the drop rate of Ancient parts such as [Ancient Screw], [Ancient Spring], [Ancient Gear], [Ancient Core], and [Giant Ancient Core]. [verify which ones can be affected?]
Shape: Circle
Can appear randomly on dropped weapons: Yes
Tiers when randomly dropped:
Tier 1 (no plus sign):
Buff when used alone: 5%
Buff when paired: 6%
Buff in a set of four: 6% [no added benefit? verify]
Note: A weapon receives a +5 damage buff from having any two weapon seals of the same suit, a +15 damage buff from having any four seals of the same suit, and a total +20 damage buff for having stacks of four seals in one suit and two seals in a different suit. Six seals of the same suit will only give a +15 damage buff. Therefore, if you wish to plan your weapon build in advance, it is important to know the hidden seals of your chosen weapon.