special summoning a level 2 with silent psychic magician and then changing its level to 3 will not let you trigger nyannyan in a new chain.
https://db.ygoresources.com/qa#7633
similar precedent set in link above, level change after summon is the only difference and doesnt matter for nyannyan as it only checks on resolution
Not a bug. As you already said, the level change happens after it’s summoned, not simultaneously, meaning nyannyan doesn’t see a level 3 monster summoned to the field
this is irrelevant. nyannyan checks at resolution, not at summon. the monster is changed to be level 3, therefore a level 3 monster was special summoned.
That is incorrect. The monster that was summoned is whatever its original level was, then changed to level 3. Nyannyan sees the monster when it was summoned with whatever stats that monster had when that summon occurred, not whatever stats it gained after the summon occurred, whether it be in a new chain link, or sequentially within the same chain link resolution.