How about a massive cold spell for DnD 5e?

 

Glacier

9th-level conjuration

Casting Time: 1 action
Range: 1 mile
Components: V, S
Duration: concentration, up to 1 minute

You summon forth a glacier of ice from the deepest, darkest heart of  the plane of water.  The Glacier plows through an area 100 feet long by 40 feet wide by 20 feet high.  All creatures in the area the glacier moves through must make a Dexterity saving throw taking 10d6 cold damage and 20d6 bludgeoning damage on a failed save and are frozen in place being restrained and frozen next to the ice, or half as much damage on a successful one and dodging out of the way of the ice.  Creatures struck by the ice are pushed to the front of the glacier.  The ice remains as long as the spell is maintained and any creature that is frozen by the ice or within  10 feet of the ice must make a Constitution saving throw at the end of each of its turns to avoid taking 10d6 cold damage and is restrained as above, or half on a successful save and avoiding being restrained.  Creatures frozen by the ice can take no actions, but if the creature succeeds on its Constitution saving throw, it thaws and may take actions as per normal on its next turn.

 

 

Thoughts?

One more DnD spell before bed

 

Empower Body

8th-level enchantment

Casting Time: 1 action
Range: Tough
Components: V, S, M (a steel rod)
Duration: Concentration, up to 1 minute

You touch a willing creature transferring the power of steel into the creatures body as the rod turns to dust.  The creatures Strength, Dexterity, and Constitution are treated as if they are all 20 for the duration of the spell.  Hit points gained from this spell are real as the creature has been empowered and are gained when the spell is cast, and when the spell ends, extra hit points over the creatures normal total are lost.

 

Thoughts?

More arcane DnD spells today!

Inactivate
5th-level transmutation
Casting Time: 1 action
Range: 50 feet
Components: V, S
Duration: Concentration, up to 1 minute
This spell turns the living to the dead, removing the animus from the subject for the duration. When you cast this spell, chose up to five moving things in range. Each subject must attempt a Constatution saving throw. Creatures or objects animated by other Spellcasters or effects use their controller’s save. If target fails it’s save, the creature falls prone. It may take only mental actions and is considered helpless. At end of each turn, it or its controller may attemt another save to end the effect. The creature does not appear as dead but spells and effects that detect life will not detect the target.
At Higher Levels: When you cast this spell using a spell slot of 6th level or higher, you can target one additional creature for each slot level above 5th

Almost everybody’s favorite 2nd level spell in enhance ability.  Let’s turn that on its head!

 

 

Ability Inversion

2nd-level transmutation

Casting Time: 1 action
Range: Touch
Components: V, S
Duration: Concentration, up to 1 hour.

You touch a creature, and the creature must make a DC 10 – your spell casting bonus saving throw for the ability you name at the time of casting.  If the creature fails, then the spell ends with no effect.  If it succeeds, then the spell occurs as normal.  At the end of a creatures turn, it may attempt the save again, but now it must make your regular spell save DC still with disadvantage from the spell.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, you can target one additional creature for each slot level above 2nd.

 

 

Thoughts?