Frosted Monstrosity

As long as you control exactly six tapped lands, Frosted Monstrosity has Trample.
{w}{g}: Frosted Monstrosity gets +0/+1 for each
creature that entered the battlefield during the
last turn.
{r}{g}: Frosted Monstrosity gets +1/+0 for each
creature that was put into a graveyard during
the last turn
{w}{r}: Frosted Monstrosity gains Haste and
Vigilance until end of turn.