Road // Ruin doesnt look especially impressive at first glance, but being able to ramp at instant speed, even for 3 mana, is pretty underrated as it allows you to keep mana up to play other instants when you want to keep your options open
The rest of the Towns have a regular secondary use, like non-basic Lands
Ive enjoyed using him in Dihada to bring back Parhelion II, and if thats all you use the -2 for, then thats still plenty good
One day late Wizards decided that this is unnaturally behavior and as a result all zone-change triggers has stopped to trigger
: Put a creature card exiled with Sisters of Stone Death onto the battlefield under your control
Mind Stone breaks the rules of ramp in control, providing a boost to mana early while drawing a card in the late-game