msem-instigator

Enchant creature
As long as it's your turn, enchanted creature has indestructible.
Whenever enchanted creature attacks, it deals damage equal to its toughness to any target.

Until end of turn, you can't lose the game, your opponents can't win the game, and your life total can't change.

When United in Battle enters, look at the top six cards of your library. You may reveal a Dwarf or Elf card from among them and put it into your hand. Put the rest on the bottom in a random order.
Whenever a Dwarf or Elf you control enters, put a +1/+1 counter on it.

{6}{W}: Tap all creatures target player controls.

Whenever a creature dies, you may put a progress counter on Unorthodox Methods.
[progress 2-6] Whenever you cast a noncreature spell, Unorthodox Methods deals 2 damage to any target and you gain 2 life.
[progress 7+] Whenever you cast a noncreature spell, Unorthodox Methods deals 4 damage to any target and you gain 4 life.
Whenever you cast a noncreature spell, CARDNAME deals 4 damage to any target and you gain 4 life.

At the beginning of your upkeep, each player mills two cards, then reveals the top card of their library and puts it on the bottom of their library.

Choose one, then choose another for each card named Unraveling in your graveyard.
• Counter up to one target spell.
• Scry 2, then draw a card.
• Up to three target lands your opponents control don't untap during their controller's next untap step.
• Creatures your opponents control get -4/-0 until end of turn.

Choose one, then choose another for each card named Unrelenting in your graveyard.
• Creatures get -1/-1 until end of turn.
• Create a 2/2 blue Elemental creature token.
• Each opponent loses 3 life and you gain 3 life.
• Search your library for a card with mana value 4 or greater, reveal it, put it into your hand, then shuffle.

Trample, ward {1}
Whenever you gain life, put a +1/+1 counter on Unrelenting Noble.
{1}, Sacrifice a permanent: You gain 2 life.

Haste
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever Unruly Magus deals combat damage to a player, draw a card.

Reverberate {2}{R} (When you cast this spell, copy it if you paid its reverberate cost.)
Creatures your opponents control get -2/-0 until end of turn. If Unstable Experiment is reverberated, creatures you control get +1/+0 until end of turn.

You may have Unstable Impersonator enter as a copy of any creature on the battlefield chosen at random.

Menace
Unveil {3}{B}{R} ({3}{B}{R}: Transform this. Unveil only as a sorcery.)

Return target creature card from your graveyard to the battlefield with an additional -1/-1 counter on it.

Unstoppable Slaughter deals 1 damage to each creature and each player. Whenever a creature dealt damage by Unstoppable Slaughter this turn dies this turn, repeat that process.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Unstoppable Weed gets +1/+1 for each +1/+1 counter on other creatures you control.

Choose one, then choose another for each card named Unsuspecting in your graveyard.
• You may return a permanent you control to its owner's hand.
• You may put an artifact, creature, or land card with mana value 2 or less from your hand onto the battlefield.
• Untap up to three target permanents.
• You gain 4 life.

Target creature you control gets +1/+0 until end of turn. That creature deals damage equal to its power to another target creature.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)
Whenever a creature you control becomes renowned, create a 1/1 red Soldier creature token with haste.

Menace (This creature can't be blocked except by two or more creatures.)
Engage (This creature must be blocked each combat if able.)

For each land you control, you may return a land card from your graveyard to the battlefield tapped.

Unwavering Questant can't block.
When an opponent fails a trial, return Unwavering Questant from your graveyard to the battlefield.

Gain control of target creature until end of turn. Untap that creature. It gains haste and is marked until end of turn.

When Unwitting Fanatic enters, create a 3/2 colorless Horror creature token.
Sacrifice Unwitting Fanatic: Another target permanent you control gains hexproof and indestructible until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Menagerie — When Uplifting Companion enters, if there are five or more creature types among creatures you control, up to two target creatures you control gain flying until end of turn.