Trample
As long as it's your turn, Angry Mob's power and toughness are each equal to 2 plus the number of Swamps your opponents control. As long as it's not your turn, Angry Mob's power and toughness are each 2.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Haste (This creature can attack and as soon as it comes under your control.)
At the beginning of the end step, sacrifice Ball Lightning.
"It had a mouth like that of a great beast, and gnashed its teeth as it strained to reach us. I am thankful it possessed no means of locomotion." —Vervamon the Elder
Whenever Cave People attacks, it gets +1/-2 until end of turn.
, : Target creature gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)