Meter

The Mana Bar

There is one mana bar at the bottom of the screen which is the one that is white and yellow.
There are multiple ways to recover your mana bar, firstly you begin with a fixed amount of mana depending on your character and secondly, the bar regenerate passively.
The other way to recover you mana is simply by hitting your opponent (but if the opponent blocked you will gain 4 times less.).
All moves gives a similar amount of mana though some command normals give a bit more.
However spirit moves give much more mana than other types, making them ideal when you're in need of mana and that is without taking their status effect into account.
Also mana does not reset between round.

Ultimate

Using a character's Ultimate will completely empty their Mana Bar, along with their Guard Bar and Overdrive Gauge.
The passive Mana generation, Overdrive bar regeneration and Guard bar regeneration are all disabled for the rest of the game. However, it does not disable Mana generation through
hitting the opponent, and as such it is still possible to use Ultimate a second time.
From here though I don't think it matches the current build of the game since it mentions "10% of each mana" while there is only one mana bar as of now
I'm starting to think I'd do well as an actual wiki writer...
< Type switch is used by pressing A and S or M or V. When type switch is used (which can be during another move just like a roman cancel.) for half a second any move you use will become of the type of the type switch (so spirit if you pressed A + S, matter if you pressed A + M...). In effect when you change the type of a move, you will simply change how it interacts with defensive mechanics (Like Typed invincibility, Typed burst...) and what status effect the move will inflict. However it won't change the Typed invincibility type of a move or other defensive Typed mechanic (A spirit move spirit and void invul will stay this way after type switch.). As such it's main use is in offense since most defensive mechanics are Typed in some ways.