Path of Annihilation Marcy: Fairly interesting little ramp card, if a little slow in doing so, but it does sort of give you Eldrazi Convoke
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
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
A good rule of thumb is that the more resources your opponent has, the less drawing a card helps them, so if you are behind on cards this is likely worth activating
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
When youre running an abundance of artifacts and Vehicles, its trivial to create a Mechtitan