Though Zirda, the Dawnwaker is an exciting cardparticularly given how good Grim Monolith and Basalt Monolith are with itI cant possibly fit this little fox in today too
Creatures are permanents, meaning they stay on the battlefield until they are destroyed or otherwise removed from the game
Out In Other Suggestions Many cards were left aside to maintain the integrity of the created deck, so I have some additional suggestions for the future development of your deck
Yavimaya Elder (Ext, S, Block) A mainstay of The Rock (a black-green deck that thrives off of card-advantage creatures), the Elder potentially nets you a four for one advantage: it can block and kill a creature, then sacrifice to draw a card plus two lands
Collectible card games offer a unique combination of strategy, collection, and community
Monstrosity of the Lake As a card whose only printing is in the Sauron, Lord of the Rings The Hosts of Mordor Commander deck, Monstrosity of the Lake is apparently designed to be reanimated