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
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
Its Flames of Rebirth Ability allows you to summon Ho-oh V from your discard pile to your Bench, attach up to 4 basic Energy cards from your discard pile, and end your turn
They rode Shiny Black C Squadder to a Top 8 finish, even taking a game off of the champion in the process
That not enough to cause a frenzy
Ive talked about the hopelessness Zendikar faced when the Eldrazi rose, and Ive talked about how Gideon Jura only knew war for most of his life