Please remember that a Cleric of St. Cuthbert has a lot in common with a Cleric of a War deity, since he gets that nasty Destruction domain.
There are better results to be had, on the main, staying out of melee and relying on the magics the Cleric can wield to perform key acts of replenishment and area denial. You specifically mentioned St. Cuthbert, so I observed the Power Attack- Cleave - Great Cleave trio. Clerics of St. Cuthbert tend to heavily improve themselves with spells and then wade in to combat, where they are holy terrors until the spells wear off.
Some players (with excellent reason) feel that Clerics that have so many combat-enhancing feats and spells that tie into them tend to become hammers, and all problems tend to begin to look vaguely like a nail..
I'd ask that you not intentionally displace the party's Fighter or Barbarian from the spotlight - the Cleric of St. Cuthbert makes for a swell "the party is almost dead, when suddenly the NPC Cleric of St. Cuthbert makes an appearance, distracting all the demons and giving you a chance for some quick heals" party saver.
There are a lot of neat spells that exist to let the Cleric do something other than heal, heal, cure, turn, heal. The Cleric class is more powerful than others, to entice people to play a healer (a dull and thankless task in many groups), and even so, many parties have to struggle along with a Ranger's or Druid's Wand of Cure Light Wounds because no one wants to play the Cleric that the group needs. In extremis, the Cleric can turn into an amazing engine of destruction, but this only really comes into play if the party's front line has fallen, and it's needful to beat down/scare off the foes while the party regroups. Most GMs would really prefer to leave that potential untapped.
If this is a one-off, which lets you revel in the power of an amazing Destruction-focused Cleric, great. For longer term fun, I suggest Pelor for Healing and the Sun domains.. and don't feel like Strength is the number 1 priority.
Nothing wrong with being a really good healer. Nothing at all.
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