starting with ruby crystal is going to be hard.Just try to farm and have money.After you get your two gold per second items you will have great income.Cooldown reduction is one of most important things on this champion because you have good spells with no cost.after making wardens mail and warmogs armor you gotta wait for 4160 gold then you can have ghostblade , raduins omen and force of nature.Last item is depends on your game style, you want to be a damaging tank or a strong tank.