diff --git a/src/data/move.ts b/src/data/move.ts
index 2ea8f5372..8cfaea678 100644
--- a/src/data/move.ts
+++ b/src/data/move.ts
@@ -1073,6 +1073,25 @@ export class MovePowerMultiplierAttr extends VariablePowerAttr {
   }
 }
 
+export class WeightPowerAttr extends VariablePowerAttr {
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+    const power = args[0] as Utils.NumberHolder;
+
+    const targetWeight = target.species.weight;
+    const weightThresholds = [ 10, 25, 50, 100, 200 ];
+
+    let w = 0;
+    while (targetWeight >= weightThresholds[w]) {
+      if (++w === weightThresholds.length)
+        break;
+    }
+
+    power.value = (w + 1) * 20;
+
+    return true;
+  }
+}
+
 export class SolarBeamPowerAttr extends VariablePowerAttr {
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
     const power = args[0] as Utils.NumberHolder;
@@ -1441,7 +1460,7 @@ export const allMoves = [
   new AttackMove(Moves.PECK, "Peck", Type.FLYING, MoveCategory.PHYSICAL, 35, 100, 35, -1, "", -1, 0, 1),
   new AttackMove(Moves.DRILL_PECK, "Drill Peck", Type.FLYING, MoveCategory.PHYSICAL, 80, 100, 20, -1, "", -1, 0, 1),
   new AttackMove(Moves.SUBMISSION, "Submission", Type.FIGHTING, MoveCategory.PHYSICAL, 80, 80, 20, -1, "User receives recoil damage.", -1, 0, 1, new RecoilAttr()),
-  new AttackMove(Moves.LOW_KICK, "Low Kick", Type.FIGHTING, MoveCategory.PHYSICAL, -1, 100, 20, 12, "The heavier the opponent, the stronger the attack.", -1, 0, 1),
+  new AttackMove(Moves.LOW_KICK, "Low Kick", Type.FIGHTING, MoveCategory.PHYSICAL, -1, 100, 20, 12, "The heavier the opponent, the stronger the attack.", -1, 0, 1, new WeightPowerAttr()),
   new AttackMove(Moves.COUNTER, "Counter", Type.FIGHTING, MoveCategory.PHYSICAL, -1, 100, 20, -1, "When hit by a Physical Attack, user strikes back with 2x power.", -1, -5, 1),
   new AttackMove(Moves.SEISMIC_TOSS, "Seismic Toss", Type.FIGHTING, MoveCategory.PHYSICAL, -1, 100, 20, -1, "Inflicts damage equal to user's level.", -1, 0, 1),
   new AttackMove(Moves.STRENGTH, "Strength", Type.NORMAL, MoveCategory.PHYSICAL, 80, 100, 15, -1, "", -1, 0, 1),
@@ -1479,7 +1498,7 @@ export const allMoves = [
   new SelfStatusMove(Moves.AGILITY, "Agility", Type.PSYCHIC, -1, 30, 4, "Sharply raises user's Speed.", -1, 0, 1, new StatChangeAttr(BattleStat.SPD, 2, true)),
   new AttackMove(Moves.QUICK_ATTACK, "Quick Attack", Type.NORMAL, MoveCategory.PHYSICAL, 40, 100, 30, -1, "User attacks first.", -1, 1, 1),
   new AttackMove(Moves.RAGE, "Rage", Type.NORMAL, MoveCategory.PHYSICAL, 20, 100, 20, -1, "Raises user's Attack when hit.", -1, 0, 1), // TODO
-  new SelfStatusMove(Moves.TELEPORT, "Teleport", Type.PSYCHIC, -1, 20, -1, "Allows user to flee wild battles; also warps player to last PokéCenter.", -1, 0, 1),
+  new SelfStatusMove(Moves.TELEPORT, "Teleport", Type.PSYCHIC, -1, 20, -1, "Allows user to flee wild battles.", -1, 0, 1),
   new AttackMove(Moves.NIGHT_SHADE, "Night Shade", Type.GHOST, MoveCategory.SPECIAL, -1, 100, 15, 42, "Inflicts damage equal to user's level.", -1, 0, 1),
   new StatusMove(Moves.MIMIC, "Mimic", Type.NORMAL, -1, 10, -1, "Copies the opponent's last move.", -1, 0, 1),
   new StatusMove(Moves.SCREECH, "Screech", Type.NORMAL, 85, 40, -1, "Sharply lowers opponent's Defense.", -1, 0, 1, new StatChangeAttr(BattleStat.DEF, -2)),
@@ -1869,7 +1888,7 @@ export const allMoves = [
   new AttackMove(Moves.STONE_EDGE, "Stone Edge", Type.ROCK, MoveCategory.PHYSICAL, 100, 80, 5, 150, "High critical hit ratio.", -1, 0, 4, new HighCritAttr()),
   new StatusMove(Moves.CAPTIVATE, "Captivate", Type.NORMAL, 100, 20, -1, "Sharply lowers opponent's Special Attack if opposite gender.", -1, 0, 4), // TODO
   new StatusMove(Moves.STEALTH_ROCK, "Stealth Rock", Type.ROCK, -1, 20, 116, "Damages opponent switching into battle.", -1, 0, 4),
-  new AttackMove(Moves.GRASS_KNOT, "Grass Knot", Type.GRASS, MoveCategory.SPECIAL, -1, 100, 20, 81, "The heavier the opponent, the stronger the attack.", -1, 0, 4),
+  new AttackMove(Moves.GRASS_KNOT, "Grass Knot", Type.GRASS, MoveCategory.SPECIAL, -1, 100, 20, 81, "The heavier the opponent, the stronger the attack.", -1, 0, 4, new WeightPowerAttr()),
   new AttackMove(Moves.CHATTER, "Chatter", Type.FLYING, MoveCategory.SPECIAL, 65, 100, 20, -1, "Confuses opponent.", 100, 0, 4, new ConfuseAttr()),
   new AttackMove(Moves.JUDGMENT, "Judgment", Type.NORMAL, MoveCategory.SPECIAL, 100, 100, 10, -1, "Type depends on the Arceus Plate being held.", -1, 0, 4),
   new AttackMove(Moves.BUG_BITE, "Bug Bite", Type.BUG, MoveCategory.PHYSICAL, 60, 100, 20, -1, "Receives the effect from the opponent's held berry.", -1, 0, 4),