Swamps of Altraz

Swamps of Altraz comes into play tapped.
{t}: Add {c}{c} to your Mana Pool.
{3}{t}: Place a number of Black 1/1 Grimm
Tokens with Gluttony 1 into the battlefield equal
to the number of Charge Counters on Swamps of Altraz.
If a creature you control dies; place a Charge
Counter on Swamps of Altraz for each creature
that died. If Swamps of Altraz has 5 or more
Charge Counters on it; destroy it.