NEWLY FORBIDDEN
Union Carrier
Number S0: Utopic ZEXAL
True King of All Calamities

NEWLY LIMITED
Cyber Angel Benten

NEWLY SEMI-LIMITED
(none)

NEWLY UNLIMITED
Dragon Buster Destruction Sword
Firewall Dragon (*See note below)
The Phantom Knights of Rusty Bardiche
Dewloren, Tiger King of the Ice Barrier
Ignister Prominence, the Blasting Dracoslayer
Rank-Up-Magic Argent Chaos Force
True King’s Return

*The Ghost of Firewall Dragon rises from the grave to haunt your dueling foes! The change to Firewall Dragon from Forbidden to Unlimited does not take effect until April 14, 2021.

The next Forbidden & Limited List will be posted no sooner than July 1st, 2021.

Source. Firewall note.