diff --git a/mods/gennext/GEN-NEXT.md b/mods/gennext/GEN-NEXT.md
index 11e22bbf7a..9742f35919 100644
--- a/mods/gennext/GEN-NEXT.md
+++ b/mods/gennext/GEN-NEXT.md
@@ -54,6 +54,10 @@ Major changes:
 - Shuckle gets Berry Shell (select "Stick" in the teambuilder), which gives a
   50% boost to Defense and Sp. Def. It also learns Leech Seed.
 
+- Echoed Voice now has 80 base power, hits once, and then, 2 turns later,
+  hits again for 80 base power. It's like Doom Desire, except it still hits
+  that first time.
+
 - Twister is now a Flying-type Scald that confuses instead of burns
 
 - Drain Punch is now Poison-type
@@ -87,6 +91,11 @@ Minor move changes:
 
 - Smog is now 60 base power, 100% poison
 
+- Sludge is now 60 base power, 100% poison
+
+- Sound-based moves are no longer affected by immunities (ghosts can hear
+  things)
+
 Minor learnset changes:
 
 - Masquerain gets Surf
@@ -98,7 +107,7 @@ Minor learnset changes:
 
 - Shuckle gets Leech Seed
 
-- Roserade gets Smog
+- Roserade gets Sludge
 
 - Meloetta gets Fiery Dance
 
diff --git a/mods/gennext/moves.js b/mods/gennext/moves.js
index 6834784248..4f5f2ed2d6 100644
--- a/mods/gennext/moves.js
+++ b/mods/gennext/moves.js
@@ -298,7 +298,28 @@ exports.BattleMovedex = {
 	******************************************************************/
 	snore: {
 		inherit: true,
-		basePower: 100
+		basePower: 100,
+		affectedByImmunities: false
+	},
+	/******************************************************************
+	Sound-based Normal-type moves:
+	- not affected by immunities
+
+	Justification:
+	- they're already affected by Soundproof, also, ghosts can hear
+	  sounds
+	******************************************************************/
+	hypervoice: {
+		inherit: true,
+		affectedByImmunities: false
+	},
+	round: {
+		inherit: true,
+		affectedByImmunities: false
+	},
+	uproar: {
+		inherit: true,
+		affectedByImmunities: false
 	},
 	/******************************************************************
 	Relic Song:
@@ -309,6 +330,7 @@ exports.BattleMovedex = {
 	******************************************************************/
 	relicsong: {
 		inherit: true,
+		affectedByImmunities: false,
 		onHit: function(target, pokemon) {
 			if (pokemon.baseTemplate.species !== 'Meloetta' || pokemon.transformed) {
 				return;
@@ -526,6 +548,43 @@ exports.BattleMovedex = {
 		accuracy: 100
 	},
 	/******************************************************************
+	Echoed Voice:
+	- change
+
+	Justification:
+	- no one uses Echoed Voice.
+	******************************************************************/
+	echoedvoice: {
+		inherit: true,
+		accuracy: 100,
+		basePower: 80,
+		category: "Special",
+		isViable: true,
+		priority: 0,
+		isNotProtectable: true,
+		affectedByImmunities: false,
+		onHit: function(target, source) {
+			source.side.addSideCondition('futuremove');
+			if (source.side.sideConditions['futuremove'].positions[source.position]) {
+				return false;
+			}
+			source.side.sideConditions['futuremove'].positions[source.position] = {
+				duration: 3,
+				move: 'echoedvoice',
+				targetPosition: target.position,
+				source: source,
+				moveData: {
+					basePower: 80,
+					category: "Special",
+					type: 'Normal'
+				}
+			};
+			this.add('-start', source, 'Echoed Voice');
+		},
+		target: "normal",
+		type: "Normal"
+	},
+	/******************************************************************
 	Signature moves and other moves with limited distribution:
 	- buffed in various ways
 
@@ -554,6 +613,14 @@ exports.BattleMovedex = {
 			status: 'psn'
 		}
 	},
+	sludge: {
+		inherit: true,
+		basePower: 60,
+		secondary: {
+			chance: 100,
+			status: 'psn'
+		}
+	},
 	octazooka: {
 		inherit: true,
 		basePower: 75,
diff --git a/mods/gennext/scripts.js b/mods/gennext/scripts.js
index 84793587ee..175b1d13ba 100644
--- a/mods/gennext/scripts.js
+++ b/mods/gennext/scripts.js
@@ -16,8 +16,8 @@ exports.BattleScripts = {
 		// Shuckle gets Leech Seed
 		this.data.Learnsets.shuckle.learnset.leechseed = ['5L100'];
 
-		// Roserade gets Smog
-		this.data.Learnsets.roserade.learnset.smog = ['5L100'];
+		// Roserade gets Sludge
+		this.data.Learnsets.roserade.learnset.sludge = ['5L100'];
 
 		// Volcarona nerf: Tail Glow instead of Quiver Dance
 		delete this.data.Learnsets.volcarona.learnset.quiverdance;