for Delve - exiling cards from your graveyard
Why not just play something for six mana that slaps instead of hoping theres something on the battlefield worth turning a card into
At the beginning of combat, each of these commanders gets you to flip a coin until you lose a flip
The thing is, even during the 40% of the time we hit a land, its a random land and not a basic of our choice
For example, if you control another permanent with an ability that triggers at the beginning of your postcombat main phase and that ability is on the stack below Sorin of House Markov's last ability, there will be an opportunity for your opponent to remove Sorin, Ravenous Neonate before you can activate one of his abilities
However, Locations are not affected by card effects that target Characters specifically