Official rule text
46.4 Infantry tokens come in values of one and three. A player can Hyperlanes are tiles that are used in some game board setups to create swap between these tokens as necessary. adjacency of system tiles that are not touching each other.
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Source: Twilight Imperium: Fourth Edition - Living Rules Reference: Prophecy of Kings
Expansion: Prophecy of Kings
Version: 2.0
Reference: Rule 46.4