Samyaza, Angel of Confusion

Flying, Indestructible
Whenever a player draws a card, you may discard
a card. If you do, search your graveyard for a card,
reveal it and put it into your hand.
Whenever a player casts a spell, you may discard
a card. If you do, search your library for a spell of
the same type, reveal it and put it into your hand.