Druid of Hidden Strength

When Druid of Hidden Strength enters the battlefield, you may turn target face-down creature you control face-up.
{g},{t}:Target creature you control that was turned face-up this turn gains +3/+3 until end of turn.
"Do not assume, child, that we are feeble simply because we are peaceful. Those whom at first seem the most frail often have the strongest spirits."