When the user's HP reaches 25%, or below, this berry activates and if the foe would damage the user with a <a href="http://pldh.net/dex/type/special" class="linksred">Special</a> attack, and the user would survive the attack, the foe losses 12.5% of its maximum HP. <a href="http://pldh.net/dex/ability/rockhead" class="linksred">Rock Head</a> does not stop this recoil effect.