Baron Sengir

Trample During your turn, Angry Mob's power and toughness are each equal to 2 plus the number of Swamps your opponents control. During turns other than yours, Angry Mob's power and toughness are each 2.

Enchant Wall Enchanted Wall can attack as though it didn't have defender.

0: This creature gets -1/-0 and gains flying until end of turn.

WW, T: Return target artifact card from your graveyard to your hand.

Destroy all lands.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

White creatures get +1/+1.

Protection from black