are pokemon promo cards worth collecting

are pokemon promo cards worth collecting putting in sleeves or are they just novelty cards? We got this at a pop up in the natural museum in London Three months into collecting Pokémon

Name: are pokemon promo cards worth collecting putting in sleeves or are they just novelty cards? We got this at a pop up in the natural museum in London Three months into collecting Pokémon
Brand: asiatransit.kg
SKU: 56411851555
Price: 20.52 USD
Availability: InStock
Rating: 4.4194 (9 reviews)

SKU: 56411851555

4.4

USD20.52 USD61.52

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Description

Most of the time creature decks sideboard a white planeswalker, its to give a different dimension against someone playing a long game with a lot of removal, and Serra the Benevolent seems so much worse in that role than Gideon, Ally of Zendikar (or even Elspeth, Knight-Errant.) This is to say nothing of the extremely high burden of proof for any four-mana card in Modern