Lorelai, Favored by Darkness

Ward—Pay X life, where X is the number of Nightmares and Wolves you control.

Nightmares and Wolves you control have menace
and get +1/+1 for each time you have cast your commander from the command zone this game.

{b}{r}{g}, {t}: Until end of turn, Nightmare and
Wolf creature spells you cast cost {b}{r}{g} less to cast. This effect reduces only the amount of colored mana you pay.