mtg.wtf

Undercity Sewers enters the battlefield tapped.
When Undercity Sewers enters the battlefield, surveil 1.

Fear
{B}: Undercity Shade gets +1/+1 until end of turn.

Renown 1
{2}{G}: Regenerate Undercity Troll.

Undergrowth — Distribute X +1/+1 counters among any number of target creatures you control, where X is the number of creature cards in your graveyard as you cast this spell. Creatures you control gain vigilance until end of turn.

Creatures you control gain deathtouch until end of turn. Then target creature you control fights target creature you don't control.

Target opponent sacrifices a creature. If you control a creature with power 4 or greater, you gain 4 life.

Whenever Undercover Butler attacks the player with the most life or tied for most life, it can't be blocked this turn.

Whenever Undercover Crocodelf deals combat damage to a player, investigate.
Disguise {3}{G/U}{G/U}

You may have Undercover Operative enter the battlefield as a copy of any creature on the battlefield, except it enters with a shield counter on it if you control that creature.

Deathtouch

Underdark Beholder enters the battlefield with ten eyestalk counters on it.
If Underdark Beholder would be dealt damage, remove that many eyestalk counters from it instead. If you can't, sacrifice it.
Whenever Underdark Beholder attacks, reveal cards from the top of your library until you reveal an instant, sorcery, or enchantment card with converted mana cost less than the number of eyestalk counters on Underdark Beholder. You may cast it without paying its mana cost. Shuffle your library.

Menace
When Underdark Explorer enters the battlefield, you take the initiative.

{T}: Add {C}.
{5}, {T}, Exile Underdark Rift: Roll a d10. Put target artifact, creature, or planeswalker into its owner's library just beneath the top X cards of that library, where X is the result. Activate only as a sorcery.

Underground Mortuary enters the battlefield tapped.
When Underground Mortuary enters the battlefield, surveil 1.

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

As an additional cost to cast this spell, you may pay {2}{R}.
Prevent all combat damage that would be dealt this turn. If this spell's additional cost was paid, this effect doesn't affect combat damage that would be dealt by red creatures.

If damage would be dealt to Undergrowth Champion while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from Undergrowth Champion.
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Undergrowth Champion.

At the beginning of your upkeep, return target land card from your graveyard to the battlefield tapped.

Undergrowth Scavenger enters the battlefield with a number of +1/+1 counters on it equal to the number of creature cards in all graveyards.

Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents.
{T}: Add {B} or {G}.

Whenever an artifact enters the battlefield under your control, you may pay {1}. If you do, each opponent loses 1 life and you gain 1 life.
{1}{B}, Sacrifice Underhanded Designs: Destroy target creature. Activate only if you control two or more artifacts.

Counter target spell. Its controller loses 3 life.

Vigilance
When Undermountain Adventurer enters the battlefield, you take the initiative.
{T}: Add {G}{G}. If you've completed a dungeon, add six {G} instead.

If you would draw a card, instead look at the top three cards of your library, then put one into your hand and the rest into your graveyard.
Pay 4 life: Underrealm Lich gains indestructible until end of turn. Tap it.