Artifacts

Legendary

Minerva's Calipers

Minerva's Calipers

What it does

BonusAt max levelAt max stars
Construction speed180 %180 %

Its random bonuses

BonusRareEpicLegendary
Construction speed10 %20 %50 %
Research speed10 %20 %50 %
Silver production20 %40 %100 %
Troop training speed10 %20 %50 %

Where its fragments come from

Minerva's Calipers fragments
  • Coliseum Shop (unconfirmed)Bought with the arena currency the Coliseum pays, which is spent only in that shop. Not confirmed yet: it comes from a message passed around in game chat, not from the game itself.
  • Paid packs (unconfirmed)Sold for real money. Not confirmed yet, from the same message.

What a full artifact costs →

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