Double Or Nothing Improving the card draw in the deck was much more difficult
The pro-artifact of Everything but Green certainly was mechanical, and now linked together with Breya
Fatal Push is one of the most efficient removal spells in Standard, and Grasp of Darkness kills most problematic creatures
Best Green Ramp Cards (MTG EDH Mono-Green Mana Guide) Explore the best green ramp cards for Commander and EDH, from mana dorks and land tutors to extra land effects and big-mana engines.
It is not uncommon for these cards to be traded for prices over 10,000 JPY (~US$67), even when in poor condition
There are, of course, weaknesses to a mill strategy some players include cards that prevent themselves from losing to an empty library, like Ulamog, the Infinite Gyre