Almora, Portal Mage

Protection from instants and sorceries.
{r}{w}{u}: Create a colorless Portal enchantment
token that has "Whenever one or more creatures
attack you or a planeswalker you control, sacrifice
this permanent and exile one of those creatures at random, then return it to the battlefield tapped
under your control." Activate this ability only
once each turn and only if you don't control any Portals.