Nightmare of Mensis (Edit)

{t} Add {c} to your mana pool as long as Brain of Mensis is a land.
{2}{c}{c} Brain of Mensis becomes a colorless 0/7 Great One creature with defender.
Frenzy - At the beginning of each upkeep, add a frenzy counter to each other player. Then, when a player has 5 or more frenzy counters on it, that player loses 5 frenzy counters and loses 5 life.