Voracious Vampire

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

When this creature enters, another target creature you control gains lifelink until end of turn.

When this creature enters, target creature an opponent controls gets -1/-1 until end of turn.

Flash

Flying

When this creature enters, target creature you control with flying gets +2/+0 until end of turn.

: This creature gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures. can be paid with one mana from a snow source.)

Menace (This creature can't be blocked except by two or more creatures.)

Whenever this creature attacks, other Knights you control get +1/+0 until end of turn.

When this creature enters, target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)