Witch's Swamphut

Visit {1}{b} ({1}{b}, Tap an untapped creature
you control: That creature phases out. If this site
is destroyed, all visiting creatures phase in.)
Whenever a creature's visit to Witch's
Swamphut ends, target opponent discards
a card. If they can't, they lose 2 life.
"Who are we cursing today, my lovely?"