New Item - Ascension Shard

This item would be a consumable and would allow you to increase the star level of one person on your field for the next round only.

This could be a good item to help late game fights shift more in someone's favour and also make gold star tier 4/5 units possible. Not sure how the interaction with gold star units should work, I say have it make them a diamond star unit, just because it'll only be for 1 round and shouldn't be too overpowered. The item would probably be as rare as Neeko's Help, with the exception of only coming from rare and legendary loot boxes.