Anti-Gravitational Ruin

Is both {b}{w}
Destroy target nonruin land when
Anti-Gravitational Ruin comes into play.
Anti-Gravitational Ruin adds +1 {b}{w} for
every other Anti-Gravitational Ruin that comes
under your control.
"Some say that those ruins were caused by the
all powerful Darkstalker." — Some Random
Tradesman