Erase

You turn your magical power towards a creature of your choice as the materials for the spell mix in your hand into a clear liquid that shoots towards said creature, once on contact with the creature all existence of it will be forgotten to the world, this will not effect the caster who will recall all events as they happened. This spell doesn't not change events but alters the memories of those who remember it. the wish spell will bring back the memories but not the creature it has been cast on. If the creature you choose has 150 hit points or fewer, it is erased. Otherwise, the spell has no effect.

The user will gain a point of exhaustion after casting the spell even if the spell has no effect