This change would greatly ease the burden on the rarer parts of a collection and make the tokens more plentiful even without reworking the applications of Shinedust
For Fusion plays, the "Destiny HERO" archetype has historically relied on monsters from other "HERO" sub-archetypes such as "Vision HERO Vyon", "Elemental HERO Blazeman" and "Masked HERO Furnace" to search "Polymerization"
8: You get an emblem with "You have no maximum hand size" and "Whenever a card is put into your graveyard from anywhere, you may return it to your hand." Legendary Planeswalker - Tamiyo Teferi, Temporal Pilgrim Whenever you draw a card, put a loyalty counter on Teferi
Add to that the play value of this one (heavy hit points and damage) and you can see why people have been on the hunt for all versions of this character's card since the card game's inception
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