Add Execute Damage to Piercing Javelin and it's morphs. It already has a Magicka and Stamina morph so this could cater to both Magplars and Stamplars as well as justifying Javelin's high base cost. I think the Stamina morph would probably have to lose it's stun to balance it. Just replace Radiant Destruction with a Defensive Ability, a Resource Multiplier, or a hard AoE CC
"My name is Julius Decimus Heraclius, Guildmaster of the Scions of the Sun, Brigadier of the Covenant Army, loyal servant to the High King Emeric. Brother to a betrayed legion, son to a fallen empire. And I will have my vengeance, in this life or the next." ---Julius Decimus Heraclius (Imperial Templar)