diff --git a/src/module/powers/basePowers.js b/src/module/powers/basePowers.js
index 558bbf5..4f0dcf9 100644
--- a/src/module/powers/basePowers.js
+++ b/src/module/powers/basePowers.js
@@ -607,7 +607,7 @@ export class PowerEffect {
   }
 
   async apply() {
-    const maintId = randomID();
+    const maintId = foundry.utils.randomID();
     const secondaryDocs = await this.createSecondaryEffects(maintId);
     const primaryDoc = await this.createPrimaryEffect(maintId);
     const maintainDoc = await this.createMaintainEffect(maintId);
@@ -873,7 +873,7 @@ export class ActorFolderEffect extends PowerEffect {
 
   async parseValues() {
     await super.parseValues();
-    this.data.maintId = randomID();
+    this.data.maintId = foundry.utils.randomID();
     this.targetActor = await game.actors.get(this.data.actorId);
     this.targetTokenDoc = await this.targetActor.getTokenDocument();
     const sourceUpdates = {
diff --git a/src/module/powers/powers.js b/src/module/powers/powers.js
index 7b0b215..c0d2f62 100644
--- a/src/module/powers/powers.js
+++ b/src/module/powers/powers.js
@@ -59,6 +59,7 @@ import { StunEffect } from './stun.js';
 import { SummonAllyEffect } from './summon.js';
 import { TelekinesisEffect } from './telekinesis.js';
 import { TeleportEffect } from './teleport.js';
+import { TimeStopEffect } from './timeStop.js';
 
 const PowerClasses = {
   'arcane-protection': ArcaneProtectionEffect,
@@ -138,6 +139,7 @@ const PowerClasses = {
   'summon-ally': SummonAllyEffect,
   telekinesis: TelekinesisEffect,
   teleport: TeleportEffect,
+  'time-stop': TimeStopEffect,
 };
 
 /* ---------------------------------------------------------------- */
diff --git a/src/module/powers/timeStop.js b/src/module/powers/timeStop.js
new file mode 100644
index 0000000..27bf147
--- /dev/null
+++ b/src/module/powers/timeStop.js
@@ -0,0 +1,42 @@
+import { PowerEffect } from './basePowers.js';
+
+export class TimeStopEffect extends PowerEffect {
+  get name() {
+    return 'Time Stop';
+  }
+
+  get icon() {
+    return 'icons/magic/time/hourglass-tilted-gray.webp';
+  }
+
+  get duration() {
+    return 0;
+  }
+
+  get isTargeted() {
+    return false;
+  }
+
+  get isRaisable() {
+    return true;
+  }
+
+  get basePowerPoints() {
+    return 10;
+  }
+
+  get description() {
+    let desc = super.description;
+    desc += `<p>Stop time for all but the caster, granting [[/r 1d4+1]] new turns
+    immediately after this one. During these turns the caster may act as normal
+    on their current Action Card.
+    `;
+    if (this.data.raise) {
+      desc += `With the raise, the caster may choose to draw a new Action Card each turn.
+      `;
+    }
+    desc += `</p><p><em>Time stop</em> ends if any of the caster's action affect
+    another character or creature.</p>`;
+    return desc;
+  }
+}