Austere Command is far less restrictive on your own build than other six mana mass removal
Grade: C 3/2s for three need more than minor upside to get there

Cranial Extraction Is an Arcane spell Choose a nonland card name and search target players graveyard, hand, and library for all cards with that name and exile them Then that player shuffles Lost Legacy Choose a nonartifact, nonland card name and search target players graveyard, hand, and library for any number of cards with that name and exile them That player shuffles, then draws a card for each card exiled from their hand this way Memoricide Choose a nonland card name and search target players graveyard, hand, and library for any number of cards with that name and exile them Then that player shuffles Necromentia Choose a card name other than a basic land card name and search target opponents graveyard, hand, and library for any number of cards with that name and exile them That player shuffles, then creates a 2/2 black Zombie creature token for each card exiled from their hand this way Achieve Black Enchantment Removal by Teaming Up Playing in black, you have the ability to use a few cards to allow an opponent and yourself to search for a card from your libraries

17 Brimaz, Blight Of Oreskos Double Up Phyrexians Suggested Cards: Massacre Wurm, Progenitor Exarch, Norn's Inquisitor Although Brimaz, Blight Of Oreskos doesn't directly support any infect creatures, where Brimaz does play into the infect strategy is the ability to proliferate if a Phyerxian died
Loyalty: 4 Illustrated by Winona Nelson Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp