As Sewer Nemesis enters, choose a player.Sewer Nemesis's power and toughness are each equal to the number of cards in the chosen player's graveyard.Whenever the chosen player casts a spell, that player mills a card.
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
FlyingWhenever Scythe Specter deals combat damage to a player, each opponent discards a card. Each player who discarded a card with the highest mana value among cards discarded this way loses life equal to that mana value.
When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.When this creature dies, you may draw a card.
HasteWhenever Skullbriar, the Walking Grave deals combat damage to a player, put a +1/+1 counter on it.Counters remain on Skullbriar as it moves to any zone other than a player's hand or library.
As The Mimeoplasm enters, you may exile two creature cards from graveyards. If you do, it enters as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.
FlyingAt the beginning of your end step, choose a creature card in an opponent's graveyard, then that player chooses a creature card in your graveyard. You may return those cards to the battlefield under their owners' control.
Impact Resonance deals X damage divided as you choose among any number of target creatures, where X is the greatest amount of damage dealt by a source to a permanent or player this turn.
Reveal the top ten cards of your library. Starting with the next opponent in turn order, each opponent chooses a different nonland card from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.
When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.When this creature dies, you may draw a card.