Target 1 of your Xyz Monsters or "Ryzeal" monsters that is banished or in your GY; Special Summon it, then you can attach 1 "Ryzeal" card from your Deck to 1 Rank 4 Xyz Monster you control, also you cannot declare attacks for the rest of this turn, except with Rank 4 Xyz Monsters. You can only activate 1 "Ryzeal Plugin" per turn.