Reply To: Increasing stack size conditionally

try adding this to the base.buffs

      {
         "id" : "torch_stack",
         "stat_type" : "extra_stack_limit",
         "item_type" : "supply",
         "item_id" : "torch",
         "amount" : 4,
         "remove_if_not_active" : false,
         "rule_type" : "always",
         "is_false_rule" : false,
         "rule_data" : {
            "float" : 0,
            "string" : ""
         }
      },

or maybe

      {
         "id" : "torch_stack",
         "stat_type" : "extra_stack_limit",
         "stat_sub_type" : "torch",
         "amount" : 4,
         "remove_if_not_active" : false,
         "rule_type" : "always",
         "is_false_rule" : false,
         "rule_data" : {
            "float" : 0,
            "string" : ""
         }
      },