Deep Analysis

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counterspell

Circular Logic

Counter target spell unless its controller pays {1} for each card in your graveyard.
Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Coffin Purge

Exile target card from a graveyard.
Flashback {B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Psychatog

Discard a card: Psychatog gets +1/+1 until end of turn.
Exile two cards from your graveyard: Psychatog gets +1/+1 until end of turn.

Ghastly Demise

Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard.

Smother

Destroy target creature with mana value 3 or less. It can't be regenerated.

Standstill

When a player casts a spell, sacrifice Standstill. If you do, each of that player's opponents draws three cards.

Recoil

Return target permanent to its owner's hand. Then that player discards a card.

Cunning Wish

You may reveal an instant card you own from outside the game and put it into your hand. Exile Cunning Wish.

Mana Short

Tap all lands target player controls and that player loses all unspent mana.

Innocent Blood

Each player sacrifices a creature of their choice.

Compulsion

{1}{U}, Discard a card: Draw a card.
{1}{U}, Sacrifice Compulsion: Draw a card.

Cremate

Exile target card from a graveyard.
Draw a card.

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Underground River

{T}: Add {C}.
{T}: Add {U} or {B}. Underground River deals 1 damage to you.

Hibernation

Return all green permanents to their owners' hands.

Chainer's Edict

Target player sacrifices a creature of their choice.
Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Island

Force Spike

Counter target spell unless its controller pays {1}.

Gainsay

Slay

Destroy target green creature. It can't be regenerated.
Draw a card.

Repulse

Return target creature to its owner's hand.
Draw a card.

Upheaval

Return all permanents to their owners' hands.

Swamp

Zombie Infestation

Discard two cards: Create a 2/2 black Zombie creature token.