Twilight's Fall – a separate game. Twilight Imperium's expansions, mods and rules topics are not part of it.

Indoctrination

At the start of a ground combat, you may spend 2 influence to replace 1 of your opponent's participating infantry with 1 infantry from your reinforcements.
The Yin BrotherhoodFaction ability

At the start of a ground combat, you may spend 2 influence to replace 1 of your opponent's participating infantry with 1 infantry from your reinforcements.

Source: Base game

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  • INDOCTRINATION is limited to once per ground combat.
  • If an invasion involves ground combats on multiple planets, INDOCTRINATION may be used at the start of each of them.
  • If the Yin player’s opponent only has mechs in the ground combat, INDOCTRINATION cannot be used.
    • If the Yin player is in a combat with the Naalu player, and the Naalu player is using the ability of their flagship, the Matriarch, to commit only fighters to the ground combat, INDOCTRINATION cannot be used.
  • If the last of a player’s ground forces in a ground combat are removed by INDOCTRINATION, that player loses the combat immediately. They will be unable to use any “start of combat” abilities.