It might be worth creating staggered Disease Cleansing Totems, just like the staggered Tremor Totems.
That way, you have a cleanse disease on the entire party every half-second or so.

I'd imagine this won't be your most used water totem button, but since the expansion DK's are rampant and you'll get some use out of it.


#show
/castsequence Disease Cleansing Totem,,,

#show
/castsequence ,Disease Cleansing Totem,,

#show
/castsequence ,,Disease Cleansing Totem,

#show
/castsequence ,,,Disease Cleansing Totem


My heals are:
/cast [help] Heal Spell; [help, target=targettarget] Heal Spell; [target=player] Heal Spell

The slaves add this line before the healing line: /assist [target=party1]
If you're using a party based leader system, just like the focus based leader system above, this will hit a friendly with a heal or the target of a hostile, which is the toon who will need the heals.