Well, he could spec to Avenger's Shield for all 4 toons and have a cast sequence macro to cycle them.

I'm somewhat amused at the thought of a pally tank and 3 pallys in cloth spell damage gear (buffed with Salv) (and a healer of some sort... CoH priest for AoE lols?) running around dropping Consecrates that collectively tick (at a mere +400 spell damage) for 500DPS... per target... that scale at 100% spell damage and can hit as many targets as you dare.