Moonlit Gravesite

When Moonlit Gravesite enters play, choose
a creature type then put a Legacy counter on it.
When a creature of the chosen type dies put a
Legacy counter on Moonlit Graveyard and a
+1/+1 counter on a creature you control.
Creatures you control of the chosen type cost {1} less to cast for each Legacy counter on
Moonlit Gravesite.