belroy card sleeve – The Paper Mouse The pull Bellroy Card Sleeve (V2) Review

If this card is Special Summoned: For every 3 of your face-down banished cards, you can banish up to 1 card from your opponent's field and/or GY, face-down, then shuffle 1 of your face-down banished cards into your Deck for each card you banished by this effect

Strixhaven: School of Mages Bundle product shot illustrated by by Magali Villeneuve

There are a few corner cases this can be boarded in to deal with such as Assemble the Legion)

The Valkyrie Engine is just waiting for something to break it, and with more & more Spell/Traps having GY effects, its only a matter of time

[/spoiler] [spoiler='Tsukiko, Envoy of the Moonlight'] Lore: You can Ritual Summon this card with "Contract with Artemis"

For example MAGO-EN005 refers to the Blue-Eyes White Dragon that was printed in Maximum Gold, specifically the English version, and also means that it was the fifth overall card printed in that set