Ars Solum

Ars Solum (ソロアルカナム) is an Ultimate-class Attack Command that can be used by Terra in Kingdom Hearts Birth by Sleep. It is a multi-hit combo similar to Ars Arcanum that can add up to three additional hits if one presses when the on-screen prompts appear. Being a possessed version of Terra, Terra-Xehanort can also use a version of this Deck Command, although the speed and amounts of hits it can land as well are greatly increased through the power of darkness. It takes up two deck slots. Its maximum level is 6, and its reload time is 25 seconds.

Recipes

 * Confusion Strike (LVL 3) and Thundara (LVL 3) - 5% - Type I Recipe
 * Sonic Blade (LVL 5) and Dark Haze (LVL 4) - 20% - Type B Recipe
 * Stopga (LVL 4) and Dark Haze (LVL 4) - 20% - Type B Recipe
 * Stopga (LVL 4) and Sonic Blade (LVL 5) - 20% - Type F Recipe
 * Thundara (LVL 3) and Strike Raid (LVL 3) - 5% - Type K Recipe
 * Thunder (LVL 2) and Sliding Dash (LVL 2) - 5% - Type K Recipe
 * Thunder (LVL 2) and Strike Raid (LVL 2) - 5% - Type L Recipe

Acquiring
Terra can acquire this Attack command from a chest found in Neverland.

Etymology
"Ars Solum" is a pun on the ability's original name "Solo Arcanum" ("First Secret" in Latin), and Last Arcanum's dub name of "Ars Arcanum" (roughly, "Secret Technique"). As such, it is meant to mean "First Technique".