L, Mysterious Mission Manager

Spells in your hand cost {2} less to cast.
You may look at the top card of your library at
any time.
You may play spells from the top of your
library, your graveyard and exile.
{t}: Target creature has shroud until end of turn.
{t}{w}{w}: Counter target spell or put 2 +1/+1
counters on target creature.
{t}{w}{w}{w}{w}: Gain control of all artifact
creatures until end of turn. They gain
haste.