New Spell: Encumber Gear

[Farland]

Encumber Gear

4th-level enchantment
Casting Time: 1 action
Range: 30 feet
Components: V, S, M (a small piece of lead)
Duration: Concentration up to 1 minute

You enchant the mind of your victim, making his possessions seem very burdensome. The target must succeed on a Wisdom saving throw or believe that his gear (including armor, clothing and items but excluding weapons and ammunition) is suddenly extremely heavy. He begins behaving as if he is heavily encumbered: his speed drops by 20 feet and he has disadvantage on ability checks, attack rolls, and saving throws that use Strength, Dexterity, or Constitution. A creature affected by this spell makes another Wisdom saving throw at the end of its turn. On a successful save, the effect ends for it.
At higher levels: When you cast this spell using a spell slot of 5th level or higher, you may target an additional creature for each slot level above 4th.


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So my primary question is whether you feel this spell is of the appropriate level.

 

[Redthistle]

What a wonderful spell! It appeals to my dastardly heart.

I'd want to make it a cantrip just because I'm mean, but I think that 3rd level is a more appropriate level for this spell.

 

[Sadrik]

Perhaps each round they make a save and are either encumbered or heavily incumbered and if they make two in a row then they end the effect. make it a 3rd level spell. You could define this spell as a few different things. Phantasmal things from the plane of shadow weighing them down (illusion) (INT save), a curse (Necromancy) (WIS save), physically altering the relative weight of their items (Transmutation) (CON save), a mental lapse (enchantment) (CHA save), or perhaps even by summoning shackles from the ethereal realm (conjuration) (DEX save).

One other thing, I think the Disadvantage on CON saves is wrong (PHB errata needed). You do not get poisoned or affected by a death spell easier because you have a large load. For other considerations on this spell here are some other conditions.

Encumbered (or do not meet the STR requirement on an armor)
Your speed drops by 10 feet. (carrying 5 times STR score in weight or more)

Encumbered, Heavily
Your speed drops by 20 feet and you have disadvantage on STR and DEX (and CON?) checks, attacks and saves. (Carrying 10 times STR score in weight or more)

Encumbered, Over (conjecture as it does not define what happens)
Your speed drops to 0 and you fail any STR and DEX (and CON?) checks, attacks, and saves. (Carrying 15 times STR score in weight or more)

Armor Non-proficiency (note this does not affect CON saves per PHB)
Disadvantage on STR and DEX ability checks, saves, and attack rolls. Fail all spellcasting.

 

[Sadrik]

A spell that makes you forget how to wear armor is nasty. sling that at a cleric or bard or warlock. Boom, fail all spellcasting.