Combos Utilizing Crystal-Spray

Destroy opponent's lands by changing plains on Flashfires to whatever type your opponent's is playing

If opponent is playing forests, change the wording on Crusading Knight so that it gets +1/+1 per forest and +x/+x per forest from Blanchwood Armor

If you and opponent arent playing the same color, change green to color of opponent's creatures. None of his creatures can untap during his untap step. You can untap yours by paying 2 mana per creatur

Change Mountain on Sanctimony to whatever land type your opponent has the most of. Every time he/she taps one of those lands, you gain 1 life

Change island to whatever land type your opponent has in play. Zhou Yu can now attack.

put living lands in play. cast crystal spray to turn forest on it into land type your opponent is playing. his lands are now 1/1 creatures. cast meteor shower to destroy as many land as you can

Cast Crystal Spray to turn forest into land type your opponent is playing. Cast Living Plane to turn opponent's land into 1/1 creatures. Cast Flameshot to destroy three of those lands

Cast Crystal Spray to turn forests into land type opponent is playing. Cast Living Lands to turn opponent's land into 1/1 creatures. Cast Fault Line to destroy all opponent's lands

have living lands in play. cast crystal spray to turn forest on it into land type your opponent is playing. opponent's lands are now 1/1 creatures. cast fireball to destroy as many lands as you can.

Destroy opponent's creatures by changing black on Cleanse to whatever color your opponent's creatures are.