21 cards where (the text includes “add {”) and the card types include “planeswal”

Arlinn, the Pack's Hope // Arlinn, the Moon's Fury (Innistrad: Midnight Hunt #211)
Arlinn, the Pack's Hope // Arlinn, the Moon's Fury (Innistrad: Midnight Hunt #211)
A-Tyvar Kell (Kaldheim #A-198)
Chandra, Bold Pyromancer (Dominaria #275)
Chandra, Dressed to Kill (Innistrad: Crimson Vow #149)
Chandra, Flameshaper (Foundations #81)
Chandra, Legacy of Fire (Commander Masters #735)
Chandra, Novice Pyromancer (Core Set 2020 #128)
Chandra, Torch of Defiance (Commander Masters #876)
Commodore Guff (Commander Masters #706)
Domri, Anarch of Bolas (War of the Spark #191)
Domri, Chaos Bringer (Ravnica Allegiance #166)
Freyalise, Llanowar's Fury (Commander Masters #290)
Jaya Ballard (Commander 2021 #175)
Koth of the Hammer (Duel Decks: Venser vs. Koth #44)
Liliana of the Dark Realms (Magic 2014 #102)
Lukka, Bound to Ruin (Phyrexia: All Will Be One #207)
Narset of the Ancient Way (Commander Masters #930)
Quintorius Kand (The Lost Caverns of Ixalan #238)
Tibalt, Wicked Tormentor (Alchemy: Innistrad #43)
Tyvar Kell (Kaldheim #198)
Valki, God of Lies // Tibalt, Cosmic Impostor (Kaldheim #114)
Valki, God of Lies // Tibalt, Cosmic Impostor (Kaldheim #114)

Though this query has ended, its relics still slumber in New Argive.