Deck Building: Players can collect cards from the Yu-Gi-Oh
The artwork is pretty nasty, too -- the Retainer would be 'just' a malnourished purple-skinned human, but the left side of his face has melted off and fused with the rest of his body, while his potbelly has transparent skin
Notably, since the Link-1 "Magical Musketeer Max" has no restrictions on its number of Link summons per turn (Unlike "Fiendsmith's Requiem"), a common play is to repeatedly Link Summon Max, use Max as material for other plays, then shuffle it back from the GY with Fiendsmith effects
Thankfully, that power translates very well into Magic: The Gathering, unlike The Ring of Lucii
Pre-Preparation of Rites - Gets both the Spell and the Monster, but the Spell must mention the Monster in its text