Assuming Averna is already on the battlefield, you'd resolve everything in this order: Cast a spell with Cascade
When Veiled Ascension or another face-down creature comes into play, you get to pit a flying counter on them
Chart shows the price of Lanturn #15 at the end of each month going back as long as we have tracked the item.
Alternatively, it'll fit a playmat in one side quite nicely, or even just 1000 cards if you need somewhere to keep your Duskmourn singles
What grade adds the most value
The deck is already stuffed with valuable tuner monsters like Tenyi Spirit - Adhara , which can be special summoned provided you currently control no effect monsters, and the much maligned Ash Blossom & The Joyous Spring , but the real fun begins when you summon key monsters such as Swordsoul of Mo Ye