Reaper's Rewards

Goldbrick (You may pay {0} instead of paying any or all of the colored mana costs of this spell. If you do, the next spell you cast costs that much more, and until then, you can't cast spells using alternative costs.)
Another target player chooses one. Then you—
•Manifest a land they control and they lose 2 life.
•Have that player sacrifice two nonland, nontoken permanents.
•Draw cards until you have seven cards in hand