sacrifice_in_hand and other fixes

pack4_ancestry.json

@@ -12,7 +12,7 @@
                     "mutex": 1
                 },
                 {
-                    "effect": "sacrifice",
+                    "effect": "sacrifice_in_hand",
                     "mutex": 1
                 }
             ]

pack6_promo_journeys.json

@@ -110,7 +110,7 @@
                     "effect": "draw"
                 },
                 {
-                    "effect": "sacrifice",
+                    "effect": "sacrifice_in_hand",
                     "effect_type": "faction_combo"
                 }
             ]
@@ -218,7 +218,7 @@
             "name": "Gruber, the Wayfinder",
             "cost": 4,
             "defense": 5,
-            "guard": false,
+            "guard": true,
             "effects": [
                 {
                     "effect": "draw_and_discard",
@@ -287,7 +287,7 @@
             "card_type": "champion",
             "faction": "blue",
             "name": "Illusionist",
-            "cost": 4,
+            "cost": 3,
             "defense": 4,
             "guard": false,
             "init_amount": 2,