Master Yi Build
Not Updated For Current Season
Master Yi build against a heavy caster team.
I use 0/21/9 masteries with improved cleanse and ghost.
Start with Meki Pendant and build it into Tear of the Goddess.
Your nexit item is Mercury's Treads.
Now you can build your TotG into Manamune or buy Hexdrinker before.
Buy Wit's End for attack speed and magic resistance.
You should buy Frozen Mallet to get some health.
Your last item is your choise. You can Guinsoo's Rageblade or Infinity Edge or The Bloodthirster.