Magnify

All creatures get +1/+1 until end of turn.

Nocturnal Raid

Black creatures get +2/+0 until end of turn.

Bad Moon

Mightstone

Ascendant Evincar

Flying (This creature can't be blocked except by creatures with flying or reach.)
Other black creatures get +1/+1.
Nonblack creatures get -1/-1.

Stampede

Attacking creatures get +1/+0 and gain trample until end of turn.

Rendmaw, Creaking Nest

Menace, reach
When Rendmaw, Creaking Nest enters and whenever you play a card with two or more card types, each player creates a tapped 2/2 black Bird creature token with flying. The tokens are goaded for the rest of the game. (They attack each combat if able and attack a player other than you if able.)