Transmute Idaho

This spell has 3 main functions of use, along with any other feasible ideas the caster can apply the basic concept of turning things into potatoes too. Per casting of this spell, the caster may choose 1 effect at a time. 

Firstly, upon touching a creature you call upon the powers of matter conversion and Idaho and convert a portion of their body into potato. Make a melee touch attack on a creature within 5ft of you If the attack hits, the creature takes 4D8 necrotic damage and has a portion of their body transmuted to potato for 10 Minutes. 

Secondly, the caster may use this spell to create a 15-foot sphere of area branching away from whatever surface the caster has touched, turning this area into difficult terrain. Any creatures that move through this area must make a dex save of the spell casters save DC or else be knocked prone.

Lastly, the spell caster can produce an amount of food equal to or proportional to an amount of space or material to feed 4 creatures a day's worth of nutrients. However; after an extended duration of consuming magically transmuted potatoes, the nutritional value of the potatoes declines. If a creature continually consumes only magical summoned potatoes 3 times or more, they receive the poisoned condition until cured by eating other food.

 At higher levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 or extends the area affected by 15ft or feeds 4 more creatures for each slot level above 2nd.