Mana Leak

Counter target spell unless its controller pays {3}.

Doom Blade

Maestros Initiate

{4}{U/R}, Exile Maestros Initiate from your graveyard: Draw two cards, then discard a card.

Glamorous Outlaw

When Glamorous Outlaw enters the battlefield, it deals 2 damage to each opponent and you scry 2.
{2}, Exile Glamorous Outlaw from your hand: Target land gains "{T}: Add {U}, {B}, or {R}" until Glamorous Outlaw is cast from exile. You may cast Glamorous Outlaw for as long as it remains exiled.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Writhing Necromass

This spell costs {1} less to cast for each creature card in your graveyard.
Deathtouch

Tolarian Terror

This spell costs {1} less to cast for each instant and sorcery card in your graveyard.
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

Island

Security Bypass

Enchant creature
As long as enchanted creature is attacking alone, it can't be blocked.
Enchanted creature has "Whenever this creature deals combat damage to a player, it connives." (Its controller draws a card, then discards a card. If they discarded a nonland card, they put a +1/+1 counter on this creature.)

Extract the Truth

Choose one —
• Target opponent reveals their hand. You may choose a creature, enchantment, or planeswalker card from it. That player discards that card.
• Target opponent sacrifices an enchantment.

Dismal Backwater

Dismal Backwater enters the battlefield tapped.
When Dismal Backwater enters the battlefield, you gain 1 life.
{T}: Add {U} or {B}.

Tribute to Urborg

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Target creature gets -2/-2 until end of turn. If this spell was kicked, that creature gets an additional -1/-1 until end of turn for each instant and sorcery card in your graveyard.

Swamp

Disdainful Stroke

Counter target spell with mana value 4 or greater.

Corrupt Court Official

When Corrupt Court Official enters the battlefield, target opponent discards a card.

Divest

Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.

Consider

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Draw a card.