Draco

Domain- This spell costs {2} less to cast for each
basic land type among lands you control.
Flying
Domain -At the beginning of your upkeep,
sacrifice Draco unless you pay {10}. This cost is
reduced by {2} for each basic land type among
lands you control.
The Holy Grail has brought forth a miracle. Reveal it
to strike fear in the hearts of all that lives.