Crosstown Courier - Whenever Crosstown Courier deals
combat damage to a player, that player puts that many cards from the top of their library into their graveyard.
Mindcrank - Whenever an opponent loses life, that player puts that many cards from the top of their library into their graveyard.
Mirko Vosk, Mind Drinker - Whenever Mirko Vosk, Mind Drinker deals
combat damage to a player, that player reveals cards from the top of their library until they reveal four land cards, then puts those cards into their graveyard.
Nemesis of Reason - Whenever Nemesis of Reason attacks,
defending player puts the top ten cards of their library into their graveyard.
Psychic Strike - Counter target spell. Its controller puts the top two cards of their library into their graveyard.
Reef Pirates - Whenever Reef Pirates deals
damage to an opponent, that player puts the top card of their library into their graveyard.
Riddlekeeper - Whenever a
creature attacks you or a planeswalker you control, that creature's controller puts the top two cards of their library into their graveyard.
Screeching Silcaw - Whenever Screeching Silcaw deals
combat damage to a player, if you control three or more artifacts, that player puts the top four cards of their library into their graveyard.
Shriekgeist - Whenever Shriekgeist deals
combat damage to a player, that player puts the top two cards of their library into their graveyard.
Sword of Body and Mind - Whenever equipped creature deals
combat damage to a player, you create a 2/2 green Wolf creature token and that player puts the top ten cards of their library into their graveyard.
Szadek, Lord of Secrets - If Szadek, Lord of Secrets would deal
combat damage to a player, instead put that many +1/+1 counters on Szadek and that player puts that many cards from the top of their library into their graveyard.
Thought Collapse - Counter target spell. Its controller puts the top three cards of their library into their graveyard.
Undead Alchemist - If a Zombie you control would deal
combat damage to a player, instead that player puts that many cards from the top of their library into their graveyard.
Woodland Guidance - Return target card from your graveyard to your hand. Clash with an opponent. If you win, untap all Forests you control. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher converted mana cost.)