[tomc]

At the risk of adding too much complexity, the ST cost per hit healed could increase. Either linearly, one for the first hit, two for the second, three for the third, etc. So healing four hits costs 1+2+3+4=10, or exponentially 1+2+4+8=15.

Making the cost exponential would effectively cap healing at 3 or 4, except for larger, coordinated undertakings.

I wonder though, if a healing spell would marginalize wizards by making them save their strength for healing other characters, rather than casting combat spells.