diff --git a/scripts/api.js b/scripts/api.js
index 70a8a10..63353d9 100644
--- a/scripts/api.js
+++ b/scripts/api.js
@@ -1,9 +1,10 @@
 import { helpers } from './helpers.js'
+import { shim, log } from './shim.js'
 import { powerEffects } from './powerEffects.js'
 
 export class api {
   static registerFunctions () {
-    console.log('SWADE MB Helpers initialized')
+    log('SWADE MB Helpers initialized')
     api.globals()
   }
 
@@ -11,11 +12,11 @@ export class api {
     globalThis.swadeMBHelpers = {
       DEBUG: true,
       powerEffects,
-      createEffectDocument: helpers.createEffectDocument,
+      createEffectDocument: shim.createEffectDocument,
       createMutationWithEffect: helpers.createMutationWithEffect,
       defaultMutationOptions: helpers.defaultMutationOptions,
-      getActorFolderByPath: helpers.getActorFolderByPath,
-      getActorsInFolder: helpers.getActorsInFolder,
+      getActorFolderByPath: shim.getActorFolderByPath,
+      getActorsInFolder: shim.getActorsInFolder,
       runOnTargetOrSelectedTokens: helpers.runOnTargetOrSelectedTokens
     }
   }
diff --git a/scripts/powerEffects.js b/scripts/powerEffects.js
index 6d1a64e..80e888f 100644
--- a/scripts/powerEffects.js
+++ b/scripts/powerEffects.js
@@ -1,4 +1,4 @@
-import { CONST, shim } from './shim.js'
+import { CONST, log, shim } from './shim.js'
 
 class PowerEffect {
   constructor (token, targets) {
@@ -40,7 +40,12 @@ class PowerEffect {
   }
 
   async powerEffect () {
-    this.prepMenu()
+    try {
+      await this.prepMenu()
+    } catch (e) {
+      log('Error preparing menu for power effect: ' + e.toString())
+      return
+    }
     const { buttons, inputs } = await shim.warpgateMenu(
       this.menuData, this.menuOptions)
     this.buttons = buttons
@@ -518,6 +523,132 @@ class SmiteEffect extends TargetedPowerEffect {
   }
 }
 
+class SummonEffect extends PowerEffect {
+  ICON = 'icons/magic/symbols/runes-triangle-blue.webp'
+
+  get actorFolder () {
+    return 'Summonables'
+  }
+
+  get name () {
+    return 'Summon Creature'
+  }
+
+  get durationRounds () {
+    return 5
+  }
+
+  async prepFolders () {
+    const folders = []
+    const folderNames = [
+      this.actorFolder,
+      `${this.actorFolder} - Default`,
+      `${this.actorFolder}/Default`,
+      `${this.actorFolder} - ${this.token.name}`,
+      `${this.actorFolder} - ${this.token.actor.name}`,
+      `${this.actorFolder}/${this.token.name}`,
+      `${this.actorFolder}/${this.token.actor.name}`
+    ]
+    for (const folderName of folderNames) {
+      const folder = shim.getActorFolderByPath(folderName)
+      if (folder) {
+        log(`Found actor folder ${folderName}`)
+        folders.push(folder)
+      }
+    }
+    if (folders.length > 1) {
+      folders.shift()
+    }
+    return folders
+  }
+
+  async prepActors () {
+    const folders = await this.prepFolders()
+    const actors = {}
+    for (const folder of folders) {
+      const folderActors = shim.getActorsInFolder(folder)
+      for (const key in folderActors) {
+        actors[key] = folderActors[key]
+      }
+    }
+    return actors
+  }
+
+  async prepMenu () {
+    this.menuData.inputs[1].label = `${this.token.name} is summoning...`
+    const actors = await this.prepActors()
+    if (Object.keys(actors).length < 1) {
+      shim.notifications.error('No summonables found')
+      throw new Error('No summonables found')
+    }
+
+    function actorData (key) {
+      return {
+        value: actors[key].id,
+        html: key
+      }
+    }
+
+    this.menuData.inputs.push({
+      type: 'select',
+      label: 'Creature to summon',
+      options: Object.keys(actors).filter(
+        k => !k.includes('_template')).sort().map(actorData)
+    })
+    this.menuData.inputs.push({
+      type: 'number',
+      label: 'Number to spawn (+half base cost per)',
+      options: 1
+    })
+  }
+
+  async prepResult () {
+    this.raise = (this.buttons === 'raise')
+    this.actorId = (this.inputs[this.inputIndex])
+    this.number = (this.inputs[this.inputIndex + 1])
+    this.actor = shim.actors.get(this.actorId)
+    this.icon = this.actor.prototypeToken.texture.src
+    this.protoDoc = await this.actor.getTokenDocument()
+    this.spawnOptions = {
+      controllingActor: this.token.actor,
+      duplicates: this.number,
+      crosshairs: {
+        icon: this.icon,
+        label: `Summon ${this.actor.name}`,
+        drawOutline: true,
+        rememberControlled: true
+      }
+    }
+    this.spawnMutation = {
+      actor: {
+        name: `${this.token.name}'s ${this.actor.name}`
+      },
+      token: {
+        actorLink: false,
+        name: `${this.token.name}'s ${this.protoDoc.name}`
+      },
+      embedded: { ActiveEffect: {} }
+    }
+    for (const effectDocument of this.effectDocs) {
+      this.spawnMutation.embedded.ActiveEffect[effectDocument.name] = effectDocument
+    }
+  }
+
+  async applyResult () {
+    await shim.warpgateSpawn(this.protoDoc, this.spawnMutation, {}, this.spawnOptions)
+  }
+}
+
+class SummonAllyEffect extends SummonEffect {
+  get name () {
+    return 'Summon Ally'
+  }
+
+  get actorFolder () {
+    return `${super.actorFolder}/Summon Ally`
+  }
+}
+
 const PowerClasses = {
   blind: BlindEffect,
   'boost/lower trait': BoostLowerTraitEffect,
@@ -529,7 +660,8 @@ const PowerClasses = {
   invisibility: InvisibilityEffect,
   'lower trait': BoostLowerTraitEffect,
   protection: ProtectionEffect,
-  smite: SmiteEffect
+  smite: SmiteEffect,
+  'summon ally': SummonAllyEffect
 }
 
 export async function powerEffects (options = {}) {
diff --git a/scripts/shim.js b/scripts/shim.js
index 6fba75f..22d1571 100644
--- a/scripts/shim.js
+++ b/scripts/shim.js
@@ -24,6 +24,10 @@ export class shim {
     return game.user
   }
 
+  static get actors () {
+    return game.actors
+  }
+
   static getStatus (label, name, favorite = true) {
     const effect = JSON.parse(JSON.stringify(
       CONFIG.statusEffects.find(se => se.label === label)))
@@ -76,6 +80,53 @@ export class shim {
   static warpgateMenu (menuData, menuOptions) {
     return warpgate.menu(menuData, menuOptions)
   }
+
+  static warpgateSpawn (...args) {
+    return warpgate.spawn(...args)
+  }
+
+  static getActorFolderByPath (path) {
+    const names = path.split('/')
+    if (names[0] === '') {
+      names.shift()
+    }
+    let name = names.shift()
+    let folder = shim.folders.filter(
+      f => f.type === 'Actor' && !f.folder
+    ).find(f => f.name === name)
+    if (!folder) { return undefined }
+    while (names.length > 0) {
+      name = names.shift()
+      folder = folder.children.find(c => c.folder.name === name)
+      if (!folder) { return undefined }
+      folder = folder.folder
+    }
+    return folder
+  }
+
+  static getActorsInFolder (inFolder) {
+    const prefixStack = ['']
+    const actors = {}
+    const folderStack = [inFolder]
+    while (folderStack.length > 0) {
+      const prefix = prefixStack.shift()
+      const folder = folderStack.shift()
+      for (const actor of folder.contents) {
+        if (shim.user.isGM ||
+          actor.testUserPermission(
+            shim.user, CONST.FOUNDRY.DOCUMENT_OWNERSHIP_LEVELS.OBSERVER)
+        ) {
+          actors[`${prefix}${actor.name}`] = actor
+        }
+      }
+      for (const child of folder.children) {
+        const newPrefix = `${prefix}${child.folder.name} | `
+        prefixStack.push(newPrefix)
+        folderStack.push(child.folder)
+      }
+    }
+    return actors
+  }
 }
 
 export function log (...args) {