For six mana (two blue plus four), you can cast a 6/7 flying dragon that, upon entering the battlefield, returns two permanents to their owner's hand
Idol of Oblivion I'd normally say Idol of Oblivion should be reserved for token decks, but so many decks can produce incidental tokens these days, so the Idol probably has more homes than it might seem
When youre running an abundance of artifacts and Vehicles, its trivial to create a Mechtitan
Even pricing in the new demand from Standard, it seems unlikely that Pyroclasm can stick at more than $20, and dropping back down towards $10 seems likely
Additionally, if an opponent would target their own permanents with beneficial effects, a player can cause Spellskite to receive these benefits instead, meaning it often must be answered as quickly as possible
As more and more cards have been released into the game, the rare slot has been filled to the brim with all sorts of powerful cards, leading some to top the charts when it comes to price