You may use a death touch once per day. Your death touch is a spell-like ablility that is a death effect. You must succeed at a melee touch attack against a living creature (using the rules for touch spells). When you touch, roll 1d6 per your cleric level. If the total at least equals the creature's current hit points, it dies.
You gain the smite power, the supernatural ability to make a single melee attack with a +4 attack bonus and a damage bonus equal to your cleric level (if you hit). You must declare the smite before making the attack. It is usable once per day.