Kalphi, Vizori's bane

Deathtouch, Flash
Leyline (This spell costs {x} less to cast where {x} is the highest converted mana cost among enchantments you control.)
When Kalphi, Vizori's Bane dies, summon Hope, Cracker of Knuckles.
You better have her cheese!
Kalphi or Hope?
Yes.