Not the worst exchange ever, but the sorcery-speed limitation feels unnecessary and a larger drawback than it needs to be
If such an ability requires a target, you can target a Room even if both of its doors are locked, but the ability won't do anything when it resolves
Sliver Overlord Sliver Overlord is a sliver that doesnt have keywords or abilities for all your other slivers, but what it does have is amazing for a Commander deck if you can keep this card alive
That's enough to start forging your own competitive deck, especially when combined with the Collection Starter Set listed above or cards from Gateway
This lets you gain a ton of life by simply attacking
We will definitely touch on building a mana base in a future article, but there are some basics (pun intended) that you should always be thinking about: How many lands you need to cast your spells and the balance of colors in your deck