Looking at how the spell is set up in the database, it's a PBAoE Stun/Damage/Hate, that then has a recourse spell which fires off a group heal (http://www.thehiddenforest.org/webtools ... hp?id=9009). That's True Command.
You then have Sacred word which is the same except that the group heal recourse (http://www.thehiddenforest.org/webtools ... hp?id=9401) itself has another recouse spell (http://www.thehiddenforest.org/webtools ... hp?id=9402) which has a 20% chance to proc an additional heal on each group member that the group heal hits.
Does that seem like what the spell is doing now? Like Freydis says merges with eqemu over time can affect things and it's possible that maybe it was proccing 100% instead of the 20% like it should before. I'm fairly certain the spell was never altered in the database since it was created.