Stern Lesson, as a Catalog variant, isnt particularly good in Blue/White, but triggering your draw two abilities in Blue/Black, and ramping in Blue/Green make the card better for those decks
Theres something incredibly satisfying about seeing the cards pulled out one by one, especially when you come across a rare or shiny card
Personally, I would probably focus on budget decks, but put awesome value cards in them that I found cheap in boxes and trades
Featuring the iconic Yu-Gi-Oh himself and the witty phrase You just activated my wrap card underneath, this sweater is sure to ignite holiday spirit faster than a trap card
If the Fusion Substitute Monster is used as Fusion Material without applying its effect, that does not prevent a Fusion Substitute Monster being used for that Fusion Summon