diff --git a/scripts/allPowers.js b/scripts/allPowers.js
index b95a1d1..631bd79 100644
--- a/scripts/allPowers.js
+++ b/scripts/allPowers.js
@@ -28,9 +28,7 @@ class PowerEffect {
 
   createEffectDocument (icon, name, changes = null) {
     if (changes === null) {
-      changes = [
-         { key: 'flags.swade-mb-helpers.hasPower', value: 1,
-          priority: 0, mode: foundry.CONST.ACTIVE_EFFECT_MODES.OVERRIDE } ]
+      changes = []
     }
     return {
       icon,
@@ -66,10 +64,10 @@ class PowerEffect {
   }
 
   get name () { return 'Unknown Power' }
+  get effectName () { return this.name }
   get icon () { return 'icons/magic/symbols/question-stone-yellow.webp' }
   get duration () { return 5 }
   get basePowerPoints () { return 0 }
-  get powerPoints () { return this.basePowerPoints }
   get usePrimaryEffect () { return true }
   get modifiers () {
     return [
@@ -169,6 +167,7 @@ class PowerEffect {
       await this.parseValues()
       await this.apply()
       await this.sideEffects()
+      await this.chatMessage()
     }
   }
 
@@ -207,8 +206,16 @@ class PowerEffect {
     return docs
   }
 
+  getPrimaryEffectChanges () {
+    const changes = [
+      { key: 'flags.swade-mb-helpers.powerAffected', value: 1,
+        priority: 0, mode: foundry.CONST.ACTIVE_EFFECT_MODES.OVERRIDE } ]
+    return changes
+  }
+
   async createPrimaryEffect (maintId) {
-    const doc = this.createEffectDocument(this.icon, this.name, [])
+    const doc = this.createEffectDocument(this.icon, this.effectName,
+      this.getPrimaryEffectChanges())
     doc.flags[moduleName].maintId = maintId
     doc.duration.seconds = 594
     return doc
@@ -257,12 +264,60 @@ class PowerEffect {
 
   async sideEffects () {
   }
+
+  get powerPoints () {
+    let total = this.basePowerPoints
+    for (const mod of this.modifiers) {
+      if (this.data.mods.has(mod.id)) {
+        total += mod.value
+      }
+    }
+    return total
+  }
+
+  async chatMessage () {
+    let text = `Cast ${this.name}`
+    if (this.targets.length > 0) {
+      text += ` on ${this.targets.map(t => t.name).join(', ')}`
+    }
+    return ChatMessage.create({
+      flavor: `Calculated cost: ${this.powerPoints} pp`,
+      speaker: ChatMessage.getSpeaker(this.source.actor),
+      content: text,
+      whisper: ChatMessage.getWhisperRecipients('GM', game.user.name),
+    }, { chatBubble: false });
+  }
 }
 
-class BurrowEffect extends PowerEffect {
+
+class AdditionalRecipientsMixin extends PowerEffect {
+  get additionalRecipientCost () { return 1 }
+  get menuInputs () {
+    const inputs = super.menuInputs
+    if (this.targets.length > 1) {
+      inputs[2].label += ` (${this.targets.length - 1} additional recipients ` +
+        ` +${this.additionalRecipientCost} ea.)`
+    }
+    return inputs
+  }
+
+  get powerPoints () {
+    let pp = super.powerPoints
+    if (this.targets.length > 1) {
+      pp += (this.targets.length - 1) * this.additionalRecipientCost
+    }
+    return pp
+  }
+}
+
+
+class BurrowEffect extends PowerEffect, AdditionalRecipientsMixin {
   get name () { return 'Burrow' }
   get duration () { return 5 }
   get icon () { return 'icons/magic/earth/projectile-stone-landslide.webp' }
+  get effectName () {
+    return `${this.name} (${this.data.raise ? 'half' : 'full'} pace)`
+  }
 }
 
 export const PowerClasses = {