The yang and yin team of Connor, the Urban Paladin, and Heather, The Mystic Cleric, is very effective as his pragmatism is balance by her optimism, her enthusiasm and idealism are tempered by his cautious paranoia, his wounds are healed by her, and she is kept alive by his sword. This effectiveness aside, Connor and Heather are not your normal adventurous members of The Church. Nor are they a couple.
Magic is like alcohol, the more that is used, the more it causes a hangover later on and the less judgement one has when using it. If one waits a while after casting a spell, things "detoxify." A cantrip or two is like a sip of weak beer, whilst a large creation spell is like a bottle of vodka. Cast something too big and you can die from magic intoxication.