Enable Basic Nexus Kull and native reactions

game/kull-default-profile.ts

@@ -15,6 +15,7 @@ export type KullDefaultProfile = {
   discoveries?: unknown;
   discoveryStash?: unknown;
   greatMaker?: unknown;
+  sandtrout?: unknown;
   homeworlds?: unknown;
   techTokens?: unknown;
   strongholdCards?: unknown;
@@ -58,8 +59,18 @@ export function kullDefaultProfile(game: KullDefaultProfile): KullDefaultEligibi
     new Set(game.players.map(player => player.faction)).size !== game.players.length)
     return blocked('Automatic Kull needs one to six distinct factions, including CHOAM, with their selected decks.');
   const options = game.lobbyOptions, projected = game.lobbyModules;
+  if (game.nexusCards || projected?.nexusCards) {
+    if (game.expansions.length !== 2 ||
+      !game.players.every(player => player.faction === 'choam' || classic.has(player.faction)) ||
+      options?.leaderSkills || options?.ecazTreachery || projected?.leaderSkills ||
+      projected?.ecazTreachery || projected?.discoveries || game.leaderSkills || game.ecazTreachery ||
+      game.discoveryEnabled || game.discoveries || game.discoveryStash || game.greatMaker ||
+      game.homeworlds || game.techTokens || game.strongholdCards || game.sandtrout)
+      return blocked('Kull with Nexus currently requires Basic CHOAM and classic factions, the Ix and CHOAM decks, and no other optional modules.');
+    return { eligible: true, reason: null };
+  }
   if (options?.leaderSkills || projected?.leaderSkills ||
-    projected?.nexusCards || projected?.discoveries || game.leaderSkills || game.ecazTreachery || game.nexusCards ||
+    projected?.discoveries || game.leaderSkills || game.ecazTreachery ||
     game.discoveryEnabled || game.discoveries || game.discoveryStash || game.greatMaker ||
     game.homeworlds || game.strongholdCards ||
     (game.techTokens && (!basicKullTechRoster(game) || options?.ecazTreachery || projected?.ecazTreachery)))