Erosion

Choose one — • Target player gains X life. • Prevent the next X damage that would be dealt to any target this turn.

This creature can't be blocked by creatures with power 3 or greater.

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.

Destroy all lands.

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

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.)

Enchant creature Enchanted creature has protection from black. This effect doesn't remove this Aura.