Awesome Cyber Monday

Whenever Deathgazer blocks or becomes blocked by a nonblack creature, destroy that creature at end of combat.

Whenever a creature is dealt damage, destroy it. It can't be regenerated.

When Death Pit Offering enters the battlefield, sacrifice all creatures you control. Creatures you control get +2/+2.

Destroy target nonblack creature. It can't be regenerated.

Target opponent reveals their hand. You choose a card from it. That player discards that card.

Defender (This creature can't attack.) {1}{B}: Regenerate Carrion Wall.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

{1}: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Flying Whenever Abyssal Specter deals damage to a player, that player discards a card.

Players play with their hands revealed. If a player would draw a card, they reveal it instead. Then any other player may pay 2 life. If a player do...

When Wrath of Marit Lage enters the battlefield, tap all red creatures. Red creatures don't untap during their controllers' untap steps.

Flying

Return target creature to its owner's hand.

{2}{U}{U}: Draw a card.

{1}: Return target land you control to its owner's hand. {1}, Discard a land card: Draw a card.

Tidal Kraken can't be blocked.

Flying (This creature can't be blocked except by creatures with flying or reach.) Whenever Thieving Magpie deals damage to an opponent, draw a card.

{U}{U}{U}, {T}: Return target permanent to its owner's hand.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Sneaky Homunculus can't block or be blocked by creatures with power 2 or greater.

As Shifting Sky enters the battlefield, choose a color. All nonland permanents are the chosen color.

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

Flying When Angel of Mercy enters the battlefield, you gain 3 life.