Crucible

After you activate a system: Your ships do not roll for gravity rifts during this movement; apply an additional +1 to the move values of your ships that would move out of or through a gravity rift instead. Then, return this card to the Vuil'raith player.

The Vuil'raith CabalPromissory note

After you activate a system:

Your ships do not roll for gravity rifts during this movement; apply an additional +1 to the move values of your ships that would move out of or through a gravity rift instead.

Then, return this card to the Vuil'raith player.

Source: Prophecy of Kings

ClarificationsSelect rulings confidence level

tirules.com

Each gravity rift will still provide its usual +1 to each ship’s move value.
Crucible will provide an additional +1 to each ship’s move value, which will not increase if that ship moves through two or more gravity rifts.
- A ship that moves through or out of no gravity rifts will apply +0 to its move value.
- A ship that moves through or out of one gravity rift will apply +2 to its move value.
- A ship that moves through or out of two gravity rifts will apply +3 to its move value.
- A ship that moves through or out of three gravity rifts will apply +4 to its move value.
- And so on.
If a ship could move from its current system to the active system through a gravity rift if its move value were +2, it may do so using Crucible. This is true even if that ship could not reach the gravity rift without Crucible.
- For example, consider a series of systems X–S–G–Y. Only systems connected by a “–” are adjacent. System “G” is a gravity rift. Systems “X”, “S” and “Y” are standard systems with no movement restrictions. A ship with a move value of one is in system “X”. Were it to have +2 to its movement value, it could reach system “Y”. Currently, that ship may reach only system “S”. Despite this, if its owner activated system “Y” and played Crucible, the ship could move to that system.
If the active player received Crucible on a previous turn, they may play it and immediately perform a transaction with the Vuil’raith player to regain it. However, Crucible cannot be played twice in one timing window. The active player cannot play Crucible again until their next turn.
Any deal between the Vuil’raith player and another player regarding when Crucible will be played, if made before Crucible is exchanged, is non-binding.
If a player plays both Crucible and the Nav Suite action card during the same tactical action, they will still apply +1 to the move value of their ships that move through or out of a gravity rift.

Sources

LRR: Living Rules Referencetirules2: tirules2.comCommunity: TI4 Online Discord, TI4 Homebrew Hub Discord