Landorus Incarnate

Flying, vigilance
While you control a Desert, Landorus gets +1/+1.
Whenever an ability of another creature you
control triggers, or you activate the ability of
another creature you control, counter that
ability, then put a +1/+1 counter on Landorus.
This ability only triggers once each turn.
{1}{g/w}{g/u}{t}: Put a -1/-1 counter on each creature
target player controls.