Yyther, Reality Shifted

During each of your turns, you may cast a card of each
card type from the zone that Yyther, Reality Shifted is in.
(The zones are your hand, Your Opponents hand,
the Battlefield, Exile, and the Graveyard. The card
types are Artifact, Creature, Enchantment, Instant,
and Sorcery.)
{w}{u}{b}: Target player plays a card from their hand
of their choice, put Yyther, Reality Shifted into that
players hand.