Quinephage the Thaumivore

Flash, Changeling, Bestow {3}{w}{u}{b}{p/w}{p/u}{p/b}
As an additional cost to cast Quinephage, you
may sacrifice any number of artifacts and/or
enchantments. Quinephage cots {x} less to cast,
where X is their combined mana value.
{0}: Quinephage or enchanted creature loses all
instances of phasing, flying, dethrone and shadow
and gains 3 of your choice from among those
abilities. You may choose dethrone up to twice
this way. Activate only as a sorcery.