Library Scrounger

When this enters the battlefield, choose three,
you may choose the same mode more than once:
•Put a borrow counter on library scrounger.
•Put a return counter on library scrounger.
•Put a study counter on library scrounger.
{t}: Repeat for each listed counter on library scrounger:
Borrow - Target opponent mills a card.
Return - Add {g}.
Study - Scry 1.