Sableye takes 20 additional damage from Grass-type attacks
Booster draft Limited focuses primarily on board states, so creatures and the ability to remove them are both at a premium
While that wont happen that often in casual EDH, its good to have the bonus
For the list below, card values are taken from the market price according to TCGPlayer at the time of writing
Losing 3 life is a minor price in Commander, a slow format with high life totals, and anyone running Anguished Unmaking in an Orzhov-colored deck is probably gaining lots of life anyhow
The one downside is they're less portable than 9-card or 4-card packages, but if your Pokmon card collection is expanding, or if you're going away for a tournament for a week, a 12-card binder is worth the investment