Fall damage – Normal Totem of Undying

Lava/Fire – Fire Resistance for 10 seconds?

Attacked/Enemy Damage – Maybe a better potion of Regen? (I'd say keep it normal)

Drowning – Water breathing

This would make Totems of undying actually worth having.

Reddit suggestions

Insane96MCP – Void -> Strong levitation effect for a couple of seconds (like to begin able to use ender pearls)