Ryujin
Legend
A neat little trick could be to have someone multi into warlord, getting one warlord heal per day, and then taking the feat that grants one extra heal per encounter, effectively giving a character one heal power per encounter - not the best, but probably enough to keep a four person party fighting.
There's a feat that gives a two-for-one Majestic Word for Bards, at Paragon. That's two healing surges, with bonuses, and two characters able to shift-1 simultaneously. It not only spreads the healing around; it also gives some interesting tactical support while doing so.