Update

Author: MathyFurret

play.pokemonshowdown.com/src/battle-tooltips.ts

@@ -767,16 +767,13 @@ class BattleTooltips {
 					['recover', 'softboiled', 'rest'].includes(move.id)) {
 				const hpValues = [];
 				let hp = serverPokemon.maxhp - 255;
-				while (hp > 0) {
+				if (hp > 0 && hp % 256 !== 0) {
 					hpValues.push(hp);
-					if (hpValues.length >= 5) {
-						// Reasonable cutoff for custom games
-						hpValues.push('...');
-						break;
+					if (hp - 256 > 0) {
+						hpValues.push(hp - 256);
 					}
-					hp -= 256;
 				}
-				text += `<p>Will fail if HP is ${hpValues.join(', ')}</p>`;
+				if (hpValues.length) text += `<p>Will fail if HP is ${hpValues.join(', ')}</p>`;
 			}
 
 			// RBY healing move glitch