diff --git a/src/battle-phases.ts b/src/battle-phases.ts
index 235a31d0271..fee08ed715f 100644
--- a/src/battle-phases.ts
+++ b/src/battle-phases.ts
@@ -463,7 +463,7 @@ export class SelectBiomePhase extends BattlePhase {
     const currentBiome = this.scene.arena.biomeType;
 
     const setNextBiome = (nextBiome: Biome) => {
-      if (!(this.scene.currentBattle.waveIndex % 10))
+      if (this.scene.currentBattle.waveIndex % 10 === 1)
         this.scene.unshiftPhase(new PartyHealPhase(this.scene, false));
       this.scene.unshiftPhase(new SwitchBiomePhase(this.scene, nextBiome));
       this.end();
diff --git a/src/data/move.ts b/src/data/move.ts
index 8d39554ee63..cc88c40c5ee 100644
--- a/src/data/move.ts
+++ b/src/data/move.ts
@@ -3144,7 +3144,7 @@ export function initMoves() {
     new AttackMove(Moves.POWER_GEM, "Power Gem", Type.ROCK, MoveCategory.SPECIAL, 80, 100, 20, 101, "", -1, 0, 4),
     new AttackMove(Moves.DRAIN_PUNCH, "Drain Punch", Type.FIGHTING, MoveCategory.PHYSICAL, 75, 100, 10, 73, "User recovers half the HP inflicted on opponent.", -1, 0, 4)
       .attr(HitHealAttr),
-    new AttackMove(Moves.VACUUM_WAVE, "Vacuum Wave", Type.FIGHTING, MoveCategory.SPECIAL, 40, 100, 30, -1, "User attacks first.", -1, 0, 4),
+    new AttackMove(Moves.VACUUM_WAVE, "Vacuum Wave", Type.FIGHTING, MoveCategory.SPECIAL, 40, 100, 30, -1, "User attacks first.", -1, 1, 4),
     new AttackMove(Moves.FOCUS_BLAST, "Focus Blast", Type.FIGHTING, MoveCategory.SPECIAL, 120, 70, 5, 158, "May lower opponent's Special Defense.", 10, 0, 4)
       .attr(StatChangeAttr, BattleStat.SPDEF, -1),
     new AttackMove(Moves.ENERGY_BALL, "Energy Ball", Type.GRASS, MoveCategory.SPECIAL, 90, 100, 10, 119, "May lower opponent's Special Defense.", 10, 0, 4)