A skill : player.addSkill(SkillTable.getInstance().getInfo(9167,1),false);
A buff : L2Skill skill;
skill = SkillTable.getInstance().getInfo(1204, 2);
skill.getEffects(activeChar, activeChar);
activeChar.broadcastPacket(new MagicSkillUser(activeChar, activeChar, skill.getId(), 1, skill.getHitTime(), 0));