While I was perusing a CharOp guide for the Seeker class, I saw a suggestion of a Hybrid Seeker|Executioner build. While my first thought was to the use the Seeker at-will powers that count as basic attacks to get the Executioner's Attack Finesse bonus damage, the guide actually suggested a synergy between Executioner poisons and the Seeker power Tidal Spirit Shot.
Tidal Spirit Shot is a Weapon power that affects an Area Burst 1 within weapon range, targeting each enemy in the burst. Some Executioner poisons can be applied to a limited number of pieces of ammunition, either 5 or 1 depending on the poison.
Obviously a Ranged power that allows multiple targets and/or attacks would use one piece of ammunition per target, but it's less clear what happens with an Area Burst. Besides the obvious question of how many projectiles you're spending every time you use Tidal Spirit Shot, how many targets would an Executioner poison affect if used with an Area Burst Weapon power?