As a third point of reference, here are all the Pioneer-legal cards printed each year (the blue bars), and the Pioneer-legal original cards (the red bars) released since 2013: Again, a similar trend: a slight increase in non-reprint cards, and a large increase in the number of reprints
An artifact's mana value is determined solely by the mana symbols printed in its upper right corner (unless that artifact is the back face of a double-faced card, is a melded permanent, or is copying something else
That counts for color identity in EDH, so your commander would have to be at least in Boros colors to play Wear / Tear
It was challenging to play proficiently but learning to do so was extremely rewarding
Once per turn, during the End Phase, if this card is in the GY because it was destroyed on the field and sent there this turn: You can Special Summon this card, but place it on the bottom of the Deck when it leaves the field
That not enough to cause a frenzy