It has been reprinted in various products, from Commander precons to Jumpstart sets, every single year
Blowing up an enemy Guide and gaining some life effectively stops two cards: the creature itself and the burn spell you gained life after
Animate Wall Animate Wall is a fairly mediocre Aura spell that allows Wall creatures to attack as though they didn't have defender
Most of the creatures in the deck are humans, neatly supporting its themes
This price rise is most likely attributed to the rising popularity of blue-white artifact decks playing the Thopter Foundry+Sword of the Meek combo alongside other powerful artifact cards like Esper Sentinel and Urza, Lord High Artificer
You play creatures that give benefits when they die, sacrifice them to outlets that provide even more benefits, and sit back as your opponents drown in a sea of value