Earth Spike

When casting this spell you choose a 5ft square of earth (dirt or stone) that you can see whithin range, a large spike of earth then shoots out from beneath the ground. Any creature that is occupying the effected space needs to make a Dexterity saving trow. On a failed save the creature(s) takes 1d8 piercing damage and is knocked prone, on a succesfull save the creature takes no damage but is moved 5ft from the effected area in whatever way the creature can/wants.
This spell leaves a permanent spike of earth in the area it is cast on until dispelled or broken.

At Higher levels: When Earth Spike is cast above first level the effected area increases 5 ft for every spellslot level. So when cast at second level the spike takes up a 10ft square. And the damage Dealt also increases by 1d8 per spellslot level above first level.