Natasha, Pyrefire Flameward

Eminence - If Natasha is in the command zone or on the battlefield, other human and elemental spells you cast cost {1} less to cast.
Humans and elementals you control get +1/+1.
Counter all triggered and activated abilities during your end step. "At end of turn." and "until end of turn" effects now use the stack, and are checked during the end step (They are then countered).