Thraben Charm scales with our wide creature count, easily killing Voldaren Epicure, Guttersnipe, or Sneaky Snacker, and can also exile graveyards (though that does nothing to madness Fiery Temper, which is cast from exile). Hallow prevents all damage from a targeted burn spell and gains us that life back, directly neutralizing a Lightning Bolt or Fiery Temper aimed at our face or a creature. We cut Phyrexian Walker and Elite Interceptor, our weakest blockers against a deck that just wants to race through the air and on the ground with burn. Keep the low curve and go under them; Dust to Dust and graveyard hate are irrelevant here since their engine lives in exile, not the graveyard.