Take an extra turn after this one. Skip all main phases of that turn.
Exile Temporal Assault.

Tunneler
When Tyrant of Terrors enters the battlefield, choose any number of target creatures with total power 4 or less. Gain control of those creatures until Tyrant of Terrors leaves the battlefield.

Whenever you attack, you may draw a card.
[f], [f] — When you cast your next instant or sorcery spell this turn, copy it. You may choose new targets for the copy.
[f] — Return up to one instant or sorcery card from your graveyard to your hand.

Tunneler
When Voidsilver Mesmer enters the battlefield, up to one target creature attacks during its controller's next combat if able. You may have that creature descend into the tunnels.

Defender
When Wall of Heroes enters the battlefield, tap target creature you don't control. That creature doesn't untap during its controller's next untap step.

Whenever Wicked Creation becomes the target of a spell or ability an opponent controls, draw a card.

Target creature has base power and toughness 4/4 until end of turn.
Maneuver

Target creature can't be blocked until end of turn.
Maneuver

Draw two cards, then discard a card.
Maneuver

Scry 3.
Maneuver

Look at the top two cards of your library. Put one into your hand and the other into your graveyard.
Maneuver

Return target instant or sorcery card from your graveyard to your hand.
Maneuver

Ashen-Wing Avenger can't block.
Whenever one or more creatures with a -1/-1 counter on them attack or block, target opponent loses 1 life and you gain 1 life.
Persist

Menace, deathtouch
You may cast Atterdal Abomination from your graveyard by exiling five other cards from your graveyard in addition to paying its other costs.

Choose one or both. If you choose both, you lose 3 life.
• All creatures get -3/-3 until end of turn.
• Remove three loyalty counters from each non-Nixilis planeswalker.

Menace
When Blackblood Monstrosity enters the battlefield, if a creature died this turn, draw a card.

Put three -1/-1 counters on target creature. You gain 3 life.

Defender, haste
{B}, {T}, Pay 1 life, Sacrifice a non-Horror creature: Create a tapped X/X black Horror creature, where X is the number of creatures that have died this turn.

Defender
{1}{B}, {T}: Target opponent loses life equal to the number of creatures with defender you control.

Target opponent discards two cards. You gain life equal to the number of card types among cards in that player's graveyard.

When Breathless Conqueror enters the battlefield, put two -1/-1 counters on up to one target creature.

At the beginning of your upkeep, you draw a card and you lose 3 life.
Spells you cast cost {1} less to cast.

As an additional cost to cast this spell, exile X creature cards from your graveyard.
Each opponent sacrifices a creature with toughness X or greater.

Target creature gains deathtouch and persist until end of turn.

Put a -1/-1 counter on each of X target creatures, then choose any number of creatures with a -1/-1 counter on them. For each of those creatures, you may either put a -1/-1 counter on it or remove one from it.