Why are you running her that much when she's a feels-bad and shuts down people's ability to find answers
Balor Be'lakor, the Dark Master Bloodcrusher of Khorne Bloodthirster Bone-Cairn Butcher Bothersome Quasit Butcher of the Horde Chaos Defiler Chaos, the Endless Defiler of Souls Exalted Flamer of Tzeentch Frenzied Raider Herald of Slaanesh Ifrit, Warden of Inferno Immersturm Raider Imskir Iron-Eater Jetmir, Nexus of Revels Kardur, Doomscourge Keeper of Secrets Lady Orca Lord Xander, the Collector Magnus the Red Malfegor Master of Cruelties Nalfeshnee Ob Nixilis, Captive Kingpin Oni of Wild Places Orca, Siege Demon Orcus, Prince of Undeath Pink Horror Prince of Thralls Rafter Demon Rakdos the Defiler Rakdos, Lord of Riots Rakdos, Patron of Chaos Rakdos, the Muscle Rakdos, the Showstopper Seeker of Slaanesh Shimatsu the Bloodcloaked Sire of Insanity Sol'kanar the Swamp King Sol'kanar the Tainted Summon: G.F

The reason infect is so good (at least in theory) is that you can have just one or two creatures and pump them up enough to give your opponents the poison counters needed to win the game
Scavenging Ooze Deathbonnet Sprouts got nothing on this
Lyra makes your angels deal more damage and gives them lifelink allowing you to pull way ahead
But first, a couple of disclaimers