Gramur Blademaster

{g}: Gramur Blademaster gains trample until end of turn.
{g}{g}: Put a +1/+1 counter on Gramur Blademaster, use this ability only once each turn.
{1}{g}: Put a -1/-1 counter on Gramur Blademaster, Gramur Blademaster gets +3/+3 until end of turn.