With a winning combination of generically strong abilities, wacky build-around potential, and a recognizable name, its not hard to see why new Niv is the most popular Commander from Foundations
6 The Mimeoplasm A Sultai (black/blue/green) Ooze for five mana, The Mimeoplasm is a classic commander option that allows you to make use of not just your own graveyard, but your opponents' as well
C Common Sillva, Warlord of Dark World X DARK Level 5 [ FiendEffect ] ATK 2300 DEF 1400 If this card is discarded to the GY by card effect: Special Summon this card, then, if it was discarded from your hand to your GY by an opponent's card effect, your opponent places exactly 2 cards from their hand on the bottom of their Deck, in any order
Aggro decks tend to go all in on winning within the first turns of the game and dont have much removal or many grindy cards to help an extended game
They transformed my backyard from a farm to an easy to maintain oasis