mid lvl cleric gear?

[Morlaeth]

Paw of Opolla quest is easily obtained level ~35. Just ask whoever is camping mutant if you can loot the weeds.

[Snigel]

Go for survivability, a dead cleric can't heal.

A big mana pool would be great if you had a %-based regen. But you don't, so stick to stamina, hp and ac.

The only thing that makes a difference is flowing thought and timing med ticks.