Meng Tiang, Euphoric Fable

For each Saga you control, Meng Tiang, Euphoric Fable gains impunity. (As long as this creature is untapped, spells your opponents cast that target it cost {1} more to cast for each Saga you control.)
Sagas you cast cost {2} less to cast.
{3}, {t}: Remove any number of lore counters from target Saga you control.