draw card deck mtg Sheoldred, the Apocalypse Forced Life Drain Magic Comman Draw two cards o:"whenever you draw" · Scryfall

Chandra Ablaze might be an interesting replacement for Ob Nixilis Reignited (although sometimes you just want to draw cards)

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This is why they could work great in either a White Weenie deck or a blue/white deck focused on cheap creatures and tempo

The reason: Infect decks generally are all about putting some eggs in a basket