Diamond Lance

You focus within and connect to the Entropic Darkness of the Lower Planes and cover your hand in cold Stasis Crystals that extend out from your hand in two directions forming an icy lance of Stasis Crystal in your hand. You may throw it at one creature within range. Make a Ranged Spell Attack against the target. On a hit, the target takes (2d8)+SM Piercing damage. Hit or miss, the Lance then explodes in a wave of cold Stasis energy. The target and each creature within 5 feet of it must succeed on a CON Saving Throw or take (2d8)+SM Cold damage on a Failure. And half as much damage on a Success. also on a hit, you gain Frost Armor: you receive Temporary Hit Points equal to the Cold damage dealt, these Temp HP are Resistant to Cold damage.

SM= Spellcasting Modifier.

"An attack frozen at the moment before it lets fly—like an arm, spear in hand, forever paused at the apex of its throw. It is the embodiment of action forever postponed, desperate to be unleashed."

Using a Higher-Level Spell Slot. The damage increases by (1d8) for each spell slot level above 2nd.