Tamiyo's Logbook
{2}{U}Artifact — Book
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{5}{U}, {T}: Draw a card. This ability costs {1} less to activate for each other artifact you control.
Official rulings
- The cost reduction of the activated ability applies only to the generic mana component of the activation cost. It can't reduce colored mana costs. Even if you have five or more artifacts, it still costs {U} to activate. (2023-02-04)
Cards like this
Functionally similar cards by meaning — playable in Tamiyo's Logbook’s colours.
