Three major board wipes exist, all very powerful spells. The Meathook Massacre is particularly nasty.

Two bounce spells with bonuses for your own creatures mean enchantment-based removal may be risky.

Devious Cover-Up may play well with avoiding milling yourself out, and the upside of Flip the Switch is relevant.

Three discard effects, the Mind Rot comes with a free decayed token.

Frenzied Trapbreaker (the flip side of Outland Liberator) will likely destroy many artifacts and enchantments for free, in general there are more main deckable disenchant effects than usual.

Only one medium falter effect, but remember it can flash it back immediately.

Many haste creatures, especially in Red.

While much incidental lifegain is present, no major payoffs exist.

The fixing is pretty standard, with a few colorless mana fixers and two green common fixers. The common land slot only includes Evolving Wilds.

Jack-o'-Lantern is unique in that it fixes from the graveyard, which may enable for off-color self mill Disturb/Flashback synergy.

Some mana ramp exists but nothing to enable hugely costed spells.

No mass pump at common should be noted for go-wide strategies, but Ritual of Hope is at uncommon. Defend the Celestus will frequently be used as mass pump, and Intrepid Adversary is a game-ending bomb.

Neonate's Rush is likely to be maindecked to enable the Vampire opponent damage theme, so watch out for your X/1s.

Only two targetted mill cards exist, but as expected in a Flashback/Disturb set, many cards mill your own library. These may be powerful for enabling your deck synergy.

One mind control exists, which is very powerful as usual.

Only one threaten, but at common. Watch out for sacrifice effects.

This is not an exhaustive list as two major mechanics: Daybound/Nightbound and Disturb both use Double Faced Cards, and can be found in their respective sections.

These cards transform via activated and triggered abilities described on the card.

Day/Night is a new mechanic that tracks throughout the game. Once the day/night cycle is begun, either player can switch the game state on their own turn by either playing no spells to swap from day to night, or by playing two or more spells to swap from night to day at the end of their turn.

Daybound/Nightbound creatures will transform depending on the game state. All Daybound/Nightbound creatures are Werewolves with the exception of Curse of Leeches and Arlinn, the Pack's Hope.

Several payoffs exist for switching between night and day, which are listed here. When they enter the battlefield, they begin the overal global Day/Night cycle for the remainder of the game.

Unnatural Moonrise can switch to night at instant speed, and two cards have payoff for the game state being in the Night, which are listed.

All wolves and werewolf creatures are listed here. There is a lot of overlap with the Day/Night mechanic.

There are several tribal payoffs for Wolves and Werewolves which are listed here as well.

Two hate cards exist which punish werewolves.

Creatures with Disturb can be cast for their Disturb cost from your graveyard, and enter the battlefield transformed.

There are several payoffs for Disturb. All transformed Disturb cards are also Spirits.

The Mill section provides a list of self mill options to enable Disturb as a payoff.

Several cards punish Disturb cards by exiling them or otherwise, and are listed here.

Instants and Sorceries with Flashback can be cast from the graveyard for their Flashback cost.

The Mill section provides a list of self mill options to enable Flashback as a payoff.

Several cards punish Flashback cards by exiling them from the graveyard, and are listed here.

Creatures with Decayed cannot block and are sacrificed after attacking. Several cards create 2/2 Zombie creature tokens with decayed as an additional effect.

Listed here are payoffs both for Zombie creature types and for having a large amount of creatures. Since you can still use Decayed tokens to activate abilities indefinitely, these cards are easier to use with a large amount of Decayed.

Cards that require the sacrifice of a creature are also listed here, as decayed tokens enable this easily.

Coven is an ability that triggers if you control three or more creatures with different powers.

Obiviously any creature is technically an enabler for Coven, but some unique power creatures in White and Green are listed as Enablers that make it easier than normal to achieve a Coven boardstate.

There are many Vampire tribal creature cards, with some payoffs for controlling multiple Vampires.

Vampire creatures also overlap with an unnamed mechanic (identical to Spectacle from Ravnica Allegiance) that triggers if an opponent lost life this turn. Neonate's Rush is an easy way to enable these cards.