Right but in the case of many spells there is no damage/saving throws
Sure, but that are exactly the spells you are looking for. If you prefer the explicit list:
Immune to Freezing
Wildfire
Burn My Eyes
Smokescreen
Fire Resistance Shield
Purifying Fire
Firefly
Self-Immolation
Summon Fire Elemental
Water of Life
Rain
Immune to Burning
Cleansing Water
Water Resistance Shield
Summon Ice Elemental
Bitter Cold
Farseer
Become Air
Invisibility
Immune to Electrified
Feather Drop
Air Resistance Shield
Remove Petrification
Make Invisible
Tornado
Summon Air Elemental
Midnight Oil
Bless
Fortify
Immune to Poisoning
Earth Resistance Shield
Blessed Earth
Summon Pet
Summon Pet
Summon Bloodswarm
Summon Earth Elemental
Oath Of Desecration
Unlock Magic
Absorb the Elements
Drain Willpower
Resurrect
Vampiric Touch
Soulsap
Invulnerability
Summon Undead Warrior
Summon Armoured Undead Decapitator
Spells that only get slightly worse are
Teleportation (increased falling damage doesn't matter if you teleport your target into a lava surface)
Bloodletting (increased damage doesn't matter for leach)
I am not 100% sure about the Destroy Summon damage.
