Aparrikon The Obligator

You may cast spells under any opponent's
control, and may do so as though they had
flash. Spells cast this way cost {b} less to
cast. Spells cast from the sanctum this way
cost an additional {3} less to cast.
____________________________________
"Turn it inside-out. We will find that fractal
before the phyrexians, and we'll make 'em think
they were the ones that got to him first."