Burgo, Cragheft Determined

Burgo's power is equal to the number of
dwarves, barbarians, and snow creatures on the
battlefield.
{r} and {s} don't empty from your mana pool as
steps and phases end.
Other dwarves, barbarians, and snow creatures
get +1/+0 for each {r} in your mana pool, and
+0/+1 for each {s} in your mana pool.
{g}: Dwarves, barbarians, and snow creatures
have trample this turn.