yugioh card gaia the fierce knight Yu-Gi-Oh! Dark PH-52 Relief Beautiful ‐ Mercari Japan: Shop from Japan and Trap Cards to defeat their opponents monsters and be the first to drop the others Life Points to 0 Gaia the Fierce Knight Origin

So it makes sense that Pokemon would also announce changes to the trading card game the most striking of which being the removal of an independent Fairy typing going forward

The latter's dependence on a DARK monster means that LIGHT Decks can't use it to Special Summon a DARK monster from the Extra Deck

The flavour text is him giving instruction on how he creates his monsters, telling an unknown person to not "let the moaning bother you, it will soon become music to your ears"

In addition to providing consistent card draw and protecting itself, Svyelun provides an additional layer of protection from opponents' removal to each of your other Merfolk, in the form of Ward 1