How about a spell for DnD 5e?
Casting Time: 1 action
Components: V, S
You create a 20-foot-radius sphere of crackling energy centered on yourself. You are safe from the effects of the spell, but all other creatures in the area must make a Dexterity saving throw. The creature takes 8d8 lightning damage on a failed save, or half as much damage on a successful one.
At Higher Levels: When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.
Alright, let’s get back into the swing of things!
Here is a relic from one of my games for Shadow of the Demon Lord
Dark Flute of the Cult
Play the song of Pain
As an action, you can play the flute. Make a Will challenge roll with 1 bane per use of the flute today. If you succeed, flesh and blood cultist of the demon lord appears and is pulled apart by invisible hooks that write horrific things on the air. You can say these words and cast a spell from the Forbidden tradition of a power level you are normally able to based on your other traditions. If you fail, you gain one corruption and a piece of your soul is stolen. You feel its loss. By successfully using this flute once, you learn Dark Speech. You do not gain corruption for using this flute if you succeed on the Will challenge roll.
I’ve been working my way up the spell list for each element. Let’s keep going with another lightning spell!
Casting Time: 1 action
Components: V, S, M (a piece of fulgurite)
When you finish the incantation for this spell, your hands instantly begin to crackle with electricity. As part of this spell you may make melee spell attacks against up to 4 targets. On a hit, the target takes 8d6 lightning damage and is stunned for one round. On a failure, the target takes no damage and is not stunned.
At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the lightning damage increases by 1d6 for each slot level above 4th.
How about we transfer the same idea of “hit it again!” to a different system?
You might not be the smartest, but you do hit hard and that sometimes make the machines work. You gain the following benefits:
- When you use a machine you are unfamiliar with you may use your Strength modifier and you are considered proficient with the machine when attempting to activate the machine.
- You can use magic items you are not attuned with by simply hitting them harder. If the item uses one of your ability modifiers, it uses Strength. If the use of the item requires a charge, you use an additional charge for each use. You apply your proficiency bonus to any spell or effect save DC, but you are not considered proficient with the item. As an example, you would use your Strength modifier and your proficiency bonus to determine a save DC, but you would not gain proficiency with a new armor or a weapon.