After few hours of clicking, decided to make a simple app to click for me. 14 million clicks later, arriving at hell stone 50. Note for people going down this path. Flash seems to crash if clicking more than once every 2 millisecond.
finally got all brilliants at level 35, key to the second last level is to sell all other towers except for one clump of crypt towers at end of round 49, they would hit the ninja champion all at once, freezing in first and killing in second blow. key to the last level is to make all the towers be mana drain towers, then nuke all the ninja's that get past.
was able to kill the end boss with 3 full groups of samuris. Use hold and attack to move. 1 group to take out the grey stars, another group to take out the shooter guys, then the 3rd group to take out the boss. Freeze comes in handy that game. but it was still close.
2 mine towers, one machine gun, 1 decoy tower, + damage buffer can win any scenario. machine guns is to carry you to mid game and shoot down the cannon rounds coming at you. decoy tower soaks up damage, and leveled up mine towers cover the screen with mines. Everything is vaporizes before they reach half screen.