Alacanism is the last sealing languages. Originated back on the Battle of Qing-Long Bridge (Book of Dragons) which Velvet first demonstrates the Alacanism.
Alacanism is also called Magic, the manner of hands moving faster than the light. Which Arcanism and Ahuran Martial Arts as its basis.
Alacanism is the same with Arcanism, it requires the elements it needs in order to cast a spell. But it don't need symbols or any materials. This language can be invoke by doing hand signs that represents the elements.
But although Alacanism is the last, it wasn't used widely enough because it don't have access on higher level spells that only Arcanes and the rest can invokes, like Tragedy Arcanes of the Elemental Gods. But though, Alacanism is much more useful in Actual Combat.