Unwanted Agency

Enchant target player
Hexproof
When you cast this spell, enchanted player may
pay {6} to return it to your hand or lose 10 life
to exile it.
If enchanted player attacks, they must exile all
the cards in their hand or exile all basic land
cards on the battlefield under their control.
Enchanted player loses 4 life any time they draw
a card. Any time they would draw a card, they
can choose to add {c} to their mana pool instead.