Glistener Seer

This creature enters with three oil counters on it.
{T}, Remove an oil counter from this creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Echoing Decay

Target creature and all other creatures with the same name as that creature get -2/-2 until end of turn.

Thought Scour

Target player mills two cards.
Draw a card.

Swamp

Persistent Petitioners

{1}, {T}: Target player mills a card. (They put the top card of their library into their graveyard.)
Tap four untapped Advisors you control: Target player mills twelve cards.
A deck can have any number of cards named Persistent Petitioners.

Pilfered Plans

Target player mills two cards. Draw two cards.

Corrupt Court Official

When this creature enters, target opponent discards a card.

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.