@Tetsu_tora
Sadly, you cannot.
Future Sight only allows you to play (cast) the card of the top of your library as though it were in your hand.
609.4. Some effects state that a player may do something “as though” some condition were true or a
creature can do something “as though” some condition were true. This applies only to the stated
effect. For purposes of that effect, treat the game exactly as if the stated condition were true. For all other purposes, treat the game normally.
Therefore, you may only cast the card that's on the top of your library since it does not allow to discard the top card of your library as though it were in your hand. You cannot use it for any other purpose. To clarify that discarding a card as a cost implies only discarding a card you have in your hand:
701.7a To discard a card, move it from its owner’s hand to that player’s graveyard.
Future Sight does not put the card in your hand nor let you use that card for d... (see all)
Posted By:
AwesomeEevee
(6/29/2011 2:32:42 PM)
Pretty wild in draft. Once you run out of normal gas, this is like a more flexible retrace where you get to convert any card you top-draw into a shock as needed.
Posted By:
Mongoose22
(8/28/2010 8:22:55 PM)
Seems like it'd be fun with Harmonize and Browbeat. And you're never sad to draw an extra copy!
Posted By:
HuntingDrake
(2/7/2011 11:38:22 PM)
Play Stormbind, empty your hand, fill it with Life From the Loam and shoot lands at your opponents every turn.
Posted By:
Kontrah
(8/19/2011 1:52:06 PM)
@Kontrah
Seismic Assault is probably the better plan for that since activating it costs no mana.
Posted By:
Kryptnyt
(3/8/2012 10:33:52 PM)
I think this card would be cool in burn decks. Too bad you need green mana for it. Still pretty good, continuous burn card.
Posted By:
Shiduba
(10/10/2009 8:26:21 AM)
Play with cards with madness.
Posted By:
nammertime
(11/28/2009 9:22:48 AM)
Too risky discarding at random.
Posted By:
EvilCleavage
(5/25/2010 10:46:01 AM)
Odd how racy essence vortex is yet no one comments about this card.
Posted By:
divine_exodus
(4/3/2011 3:33:57 PM)
Say I'm topdecking and have future sight in play...can I use my revealed topdeck card with this? Future sight does say play as though it were in your hand...
Posted By:
Tetsu_tora
(5/9/2011 7:09:48 PM)