Recommended Helmet Enchantments
Best all-round damage reduction. Pick ONE protection type - Protection, Blast, Fire and Projectile Protection are mutually exclusive.
Adds 45 seconds of underwater breathing time - essential for ocean monuments.
Mine at full speed underwater, instead of the 5x slowdown.
Helmet durability lasts about 3x longer.
XP repairs the helmet - keep it alive through endgame.
Optional: reflects damage to attackers, but drains durability faster.