Handle prior leaders in Basic battle explosions

game/reference.ts

@@ -2815,7 +2815,7 @@ export const RULE_TOPICS: RuleTopic[] = [
     steps: [
       'Choose one weapon, one defense, both, or neither. A worthless card can occupy a weapon or defense slot.',
       'Choose an available leader or Cheap Hero when required. Without either, battle cards cannot be played. In Advanced, sealing a legal leaderless plan announces that fact to the whole table before reveal; its dial, spice and other choices remain sealed. Refresh retains the same announcement without submitting another plan.',
-      'In Advanced on Arrakis, a surviving leader remains in its battle territory for the rest of the Battle phase. A later Lasgun–Shield explosion there also kills previously surviving leader discs still present, even if a different leader fights that later battle. A successful Traitor call prevents the explosion.',
+      'On Arrakis, a surviving leader remains in its battle territory for the rest of the Battle phase. A later Lasgun–Shield explosion there also kills previously surviving leader discs still present, even if a different leader fights that later battle. The Basic application is provisional; a successful Traitor call prevents the explosion.',
       'A loser normally discards all played cards. If allied with Moritani and the battle has a winner, the defeated ally may retain one played card that a winner could keep. A winner may discard selected played cards; Cheap Heroes are discarded after use.',
     ],
     related: ['battle', 'card-karama', 'moritani-ally-retention'],