Sidereal Confluence
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Where does a card spent to upgrade another card go, and is it still in the game?
The rulebook gives the placement, and the designer confirms the effect and the Kt exception.
- Sidereal Confluence rulebook · Rulebook · Violet Converters
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- TauCetiDD · Designer · 2017-08-28
The rulebook says to place the spent prerequisite card under the upgraded card, where it is effectively out of play. The designer returns spent cards to the box to keep the table tidy, which is a matter of preference. Spent Kt colonies and converters are removed from the game and cannot be discovered again.