Black can double-jump! Even after having connected with an air-to-air or jump-in attack, immediately after that you are still able to perform that second jump, and also attack out of it again. Should give you plenty of options to play around with the opponent and create unique combos.

With the exception of his Light Punch and Light Kick, all of Black's neutral jumping attacks have different animations compared to his backwards/forwards jumping versions.

Black, like a few other characters, can perform one of his jumping attacks while backdashing.

Going either forward or backward, Black can perform a hopping kick.

A double whammy kick, the second kick smashes the opponent towards the ground.

A two-in-one attack. After a low spinning roundhouse kick, Black automatically follows up with a high spinning roundhouse kick whilst traveling forward.

If you catch a jumping or falling opponent with this leaping kick, Black rides them like a surfboard until they crash into the wall. Surf's Up!

A mini-Install which enhances all of Black's Specials (excluding their EX versions). It lasts until you use a non-EX Special move.

Black's projectile attack. He swipes his arm, launching a quick volley of energy spikes which pierce the opponent and keep them in place for second, after which the spikes explode. The spikes shot from the Blood Buff version carry the opponent back until they hit the wall. On block, the opponent is pushed back only a little but the spikes will still embed themselves into the wall and explode soon after. The EX version creates a slow-moving multi-hitting energy wave instead.

Instead of Up, you can also input Up/Back or Up/Forward + Punch. Noose is a move which teleports Black into the air, twirling his energy scythe for a while as long as you hold the Punch button, then lunges straight down to the ground with an overhead strike with the scythe. The LP version teleports Black back a short distance, MP in the middle of the screen and SP switching sides with the opponent. When Blood Buffed, the non-EX scythe attack creates a fast energy wave shooting across the ground.
The EX version is a different attack alltogether, a homing-teleporting excecution attack. After grabbing the opponent's head, Black slashes down through them. Keep in mind this attack won't be as succesful when performed as the opponent is jumping or falling. If the opponent has a fast enough reaction, they can evade this EX version by crouching.

Engulfing himself in energy, Black dashes forward while stabbing repeatedly with energy blades. He'll travel farther forward and perform more slashes the stronger the Kick button used to activate the attack. EX En Garde has a completely different effect now: Black won't travel at all. Instead, he will stab into a small portal in an attempt to attack the opponent from behind. If done up close, the initial stab may push the opponent back into the rest of the stabs.
When Blood Buffed, Black will launch the opponent through a portal which makes it a launcher.

Zamasu is here to assist his Goku-bodied self! Comparable to SSJ Goku's Teleport Bar, Black comes with his own buffer bar which can hold one Assist Attack, (two when in Godly Mode). Performing one takes away a chunk of this bar and then slowly begins to refill. These four Zamasu assist attacks are also tied to Black's Zetto Counters. Most important to note is that you cannot perform any Zetto Counter if Zamasu is unavailable (though this is not tied to Zamasu's bar but merely to the fact whether he's already attacking or not). Though note that you can still use any of Black's Supers that involve Zamasu, even if a Zamasu Assist is already out.
The first of these Assist attacks is this dive kick, an attach which tracks the opponent. They are launched up after being hit by it.

Zamasu fires two fireballs diagonally down in rapid succession.

The most basic of Zamasu helper attacks, he performs a forward dashing stabbing and slam attack.

Appearing behind the opponent, Zamasu smashes them in the back with an energy-charged palm strike, knocking them towards Black.