This is only good advice in cube play, you will note modern decks do not take this advice and this is because in cube you very rarely face mirrors due to the card pool being what it is
Purphoros, God of the Forge Death by a thousand burns If youd rather kill your opponent with 100 triggers than just one big one, then Purphoros, God of the Forge is the mono-red card for you
Compared to The Queen - Wicked and Vain, this is an upgrade, since you don't have to choose between drawing and questing
Poppet Stitcher / Poppet Factory Poppet Stitcher is one of many Young Pyromancer variants with a token payoff on the back, which is very uncharacteristic of a blue card
Like many other uncommons in this set, it is better than most of the rares
It means having either the word "artifact" or "Contraption" (or their plurals) in their rules text