diff --git a/src/main/resources/artifacts/generator.yml b/src/main/resources/artifacts/generator.yml
index f868358..01af220 100644
--- a/src/main/resources/artifacts/generator.yml
+++ b/src/main/resources/artifacts/generator.yml
@@ -11,7 +11,7 @@ rarities:
     color: "#7d9b6a"
     weight: 65
     elements: 1-1
-    aura_cap: "0-25"
+    aura_cap: "10-25"
   uncommon:
     name: Uncommon
     color: "#5aa0c8"
@@ -84,7 +84,7 @@ types:
     naming-scheme: cerrith
     model-scheme: cerrith
     aura_cap:
-      common: "0-25"
+      common: "10-25"
       uncommon: "26-45"
       rare: "46-65"
       epic: "66-90"
@@ -107,7 +107,7 @@ types:
     naming-scheme: seithr
     model-scheme: seithr
     aura_cap:
-      common: "0-25"
+      common: "10-25"
       uncommon: "26-45"
       rare: "46-65"
       epic: "66-90"
@@ -130,7 +130,7 @@ types:
     naming-scheme: oseni
     model-scheme: oseni
     aura_cap:
-      common: "0-25"
+      common: "10-25"
       uncommon: "26-45"
       rare: "46-65"
       epic: "66-90"
@@ -153,7 +153,7 @@ types:
     naming-scheme: mitlan
     model-scheme: mitlan
     aura_cap:
-      common: "0-25"
+      common: "10-25"
       uncommon: "26-45"
       rare: "46-65"
       epic: "66-90"
diff --git a/src/main/resources/charges.yml b/src/main/resources/charges.yml
index ad5ed57..3d660dc 100644
--- a/src/main/resources/charges.yml
+++ b/src/main/resources/charges.yml
@@ -35,9 +35,13 @@ tiers:
 #   cerrith:
 #     1: 15
 #     2: 45
+#
+# The same bands gate spell casts against the caster's resonance, which stops at the
+# element's max_resonance (100 by default). Keep the top band at or below it, or no
+# one can cast tier IV spells.
 bands:
   default:
     1: 10
-    2: 40
-    3: 75
-    4: 110
+    2: 35
+    3: 65
+    4: 95