Mysterio, Illusory Master

Illusory spells you cast cost {1} less to cast. (Illusions, face-down cards, and any cards that copy
are Illusory.)
Illusory cards you control have all card types and
subtypes and gain "{2}: This card gains Hexproof
and Split Second until end of turn."
{5}: Target permanent becomes an Illusion until
end of turn.