Mono-White Aggro curves out with efficient small creatures like Thraben Inspector and Fortress Kin-Guard and closes with Battle Screech tokens, so life gain to offset their steady damage output matters more than hand disruption against a deck with 24 creature cards that rebuilds easily. Healer of the Glade's 3 life on entry helps us survive the early beatdown, and Vitu-Ghazi Inspector adds a solid reach blocker against their flyers from Battle Screech. Masked Vandal has no real artifact/enchantment targets here, so it's cut for the extra lifegain piece. Mesmeric Fiend is removed since stripping one creature from a wide, redundant aggro deck rarely slows them down meaningfully.