Haste
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

First strike
Other Vampire creatures you control get +1/+1 and have first strike.

Exile all nonland permanents target player controls. Return the exiled cards to the battlefield under their owner's control at the beginning of the next end step.

At the beginning of each upkeep, you may exile target creature card from your graveyard. If you do, create a token that's a copy of that card, except it's a Spirit in addition to its other types. Exile it at the beginning of the next end step.

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature has ": This creature gets +2/+0 until end of turn."

First strike
Noncreature spells cost more to cast.

Target player mills two cards.
Draw a card.

: Create a 1/1 white Human creature token.
Fateful hour — As long as you have 5 or less life, other creatures you control get +2/+2.

: Exile target creature card from a graveyard.

, Sacrifice Torch Fiend: Destroy target artifact.

Whenever an opponent casts a spell, Tovolar's Magehunter deals 2 damage to that player.
At the beginning of each upkeep, if a player cast two or more spells last turn, transform Tovolar's Magehunter.

Flying
When Tower Geist enters the battlefield, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

Reveal the top four cards of your library. Put a creature card from among them into your hand and the rest into your graveyard.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature gets -1/-1 until end of turn.
Morbid — That creature gets -13/-13 until end of turn instead if a creature died this turn.

Morbid — When Ulvenwald Bear enters the battlefield, if a creature died this turn, put two +1/+1 counters on target creature.

Target creature gains undying until end of turn. (When it dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Unhallowed Cathar can't block.

: Add .
, : Creatures you control gain deathtouch and lifelink until end of turn.

Flying
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Vigilance
Fateful hour — As long as you have 5 or less life, other creatures you control have vigilance.