Someone is also going to call the second ability useless trinket text as they add them over Voltaic Key to their Karn deck. They're playing a match and suddenly they realize they need to push through two damage against a battlefield littered with Monk tokens. They look at their Manifold Key. They look at their Grim Monolith. They look at Karn, the Great Creator's +1 ability. They scoop out of spite. Vintage.
@griselbrother Because Voltaic Key on its own is extremely narrow and not worth reprinting on its own in a Standard-legal set.
Before @Griselbrother gets one over on you, Voltaic Key was reprinted in M11. He just can't understand how the power dynamic of Magic could have possibly shifted in nine years.
A few weeks ago @ChubbyRain played this deck. I have no clue how he did because I didn't watch, but The Tabernacle at Pendrell Vale and Bojuka Bog seem like the only damn cards left that Dredge doesn't build to sidestep in a post-London world. Bonus points for stunting on anyone brewing with Mystic Gate (EDIT: Mystic Forge. Thanks unremarkable WotC card names!) a la Force of Vigor.