mtg commander masters sliver deck Magic: The Gathering - Green deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards Upgrading a Sliver Commander deck

As an added boost to an already terrifying card, any time a ninja, turtle, and/or mutant deals combat damage to a player, that creature gets a +1/+1 counter

It can also ping the opponent when it dies, thus helping to build speed

While Virtue of Knowledge isnt the speediest spell with a mana value of 5, the Instant half it gains through being an adventure is much cheaper and still frequently useful

7 Secret Arcade / Dusty Parlor My Two Favorite Places Secret Arcade / Dusty Parlor has the potential to produce a lot of +1/+1 counters in a very short period of time

If youve got a deck with black in it in Commander, you should probably be playing Phyrexian Arena

My only concern is that it lacks the tutoring or card advantage of black or red decks so might fall a little less consistent