The Guide goes into detail for Platinum's Flourish and Rebellion theme decks as well as Rising Rivals' Cutting Edge and Drill Point them decks
Rare editions like Secret or Ultimate Rare cards can appreciate over time, attracting collectors who also see them as investments
While we can expect these prices to drop a lot over time, its still good to watch them
Exalted Flamer of TzeentchExalted Flamer of Tzeentch gives up some more spell slinging reinforcement by letting us return a random instant or sorcery to our hand at our upkeep while also letting us deal one damage to each opponent when we cast an instant or sorcery
They copy themselves for each spell cast before it, so it's possible to cast enough spells to burn all your opponents with Grapeshot, or mill them all with Brain Freeze if you're able to cast a ton of spells in one turn (made easier with the Hullbreaker Horror combo)
Limitations: Because it averages eBay sales, the "ungraded" price can be misleading, as it often lumps together cards of all conditions, from damaged to near-mint