Clerics are not Underpowered.
In fact the Light subclass is a more than a little OP, and if we ever get Level 5 they will become majorly OP because at that point they not ONLY become the hardest to hit Tank in the game due to Warding Flare (once per round gives disadvantage to the attacker, unlimited charges) and having the best AOE in the game (Radiance of the Dawn 2d10 + wis mod /half on failed save to ONLY enemy targets in 30 feet from caster) but they will also get to cast Fireball as many times as a Wizard or Sorcerer at 5th level while being almost impossible to hit and being able to cast Radiance twice just with the extra divine channel at level 5 - wrecking anyone in melee range!
OMG, Light Clerics just dominate.
Even regular Clerics have an amazing array of Force Multiplier type spells. Love Clerics in this game.
Ok Back to Playing Elden Ring.