In team fights, do not group too closely together with your teammates as Tibbers R can stun multiple members of your team if you're grouped near one another. Maintain a safe distance but not be too close that Annie can CC your whole team. Annie lacks mobility and defensive stats, making it hard for her to fight. Try to delay team fights as long as possible while poking her down. If she is low on health or engaging/using Q or Tibbers R aggressively will be very dangerous.