Viridian Shaman Magic The Gathering Card

Slow start but great deck for me

This deck was based off of the creature types Elf, Giant, and Treefolk. It needs some tweaking, because it had never lost a game before today, when a blue-white control deck tore it apart. Any suggestions?

1.having greater good in play and having eternal witness in the graveyard with yosei, having footsteps of the goryo and goryo's vengeance in hand to splice to return witness to get back foosteps, attack with yosei, sacrifice to greater good to draw another witness or recursion spell and locking down or time walk your opponent is retardedly good. This combo locks down mono blue and blue tooth. 2. do the same thing with kokusho, end the game in one turn. 3. kagemaro the entire field with excessive cards in hand. 4. kuro comes in instantly clears the field attacks for 9 and draws 9 cards, ridiculosly retarded and good. 5. keiga recuring, drawing cards and stealing your opponents creatures. 6. thirst to put stuff in ther graveyard 7. gifts to find the missing pieces or piece to what ever combo is needed at the time- got to love options 8. shaman to kill pithing needle 9. mind slicer in play to sacrifice to greater good, discard hand and end up with one card while controll decks are in top deck mode, but pithing needs to nams diving top- G.G. for blue control or blue tooth