Counter: Library vs Relic
|Library vs Relic|
|Set(s)||Base / Adventures|
Usually, the -1 Card token hurts you by making you draw 1 less card. However, since Library's card draw does not draw a fixed number of cards, but rather draws until a condition is met (until you have 7 cards in hand), the effect of the -1 Card token is nullified. With Borrow, it's a little trickier, since Borrow is not triggered during your Action phase, but if Library is drawn in your 4-card hand, it can draw you back up to 7 cards.
Watchtower and Jack of all Trades similarly counter the -1 Card token. Cards that say "put in your hand" rather than "draw", usually digging cards, but also Envoy, can work around the -1 Card token, but do not remove it completely.