Only a Preacher. The downside of this combo is actually that normally your opponent will use dispell dice primarily on your wizard spells and then often let the prayers go through, however, in this case there are only the prayers to focus on and so your oppenent have more dispell dice to use on these. So it would be wise to include several bound spell casters.
@Warlord: yeah, bound spells work pretty much the same as 8ed, although they can get destroyed if you miscast (two or more sixes) but this depends on the number of dice you use.