Drinking to Forget

Target player puts the top four cards of their
library into their graveyard.
Warding: When an opponent draws a second
card during their turn. (You may pay {3} to put
this card into play face down attached to a land. In
response to the trigger condition, you may tap the
land and reveal the card. If you do, play the spell
and copy it once. )
"Things no man should see, hmm. BARTENDER!
Give me two doubles!, maybe double that too."