не вручит мне старость посох(metaphorically means that the speaker won't feel the burden of old age or won't need the support typically associated with old age Alex_Odeychuk)
разыгрывать слабую карту(North Korea Plays a Weak Hand to Advantage Beijing. North Korea is sometimes mocked as the mouse that roared, one of the poorest countries in the world threatening two economic and military giants, the United States and South Korea. But under Kim Jong Il and now his 30-year-old son, Kim Jong Un, North Korea has proved itself the master at playing a poor hand.4uzhoj)