Sacrificer

Sacrificer is a Special Agent(?). It costs 250 MM. With this agent you can choose a tower to be sacrificed to another chosen Temple. It can't sacrifice 3|3, 4|4 or 5|5 towers without upgrades.

Pro
Sacrificer Pro will be unlocked by using Sacrificer 20 times (250*20=5000). It will increase the power of the temple when sacrificed.

Epic
Sacrificer Epic will be unlocked by using Sacrificer Pro 25 more times (=6250). It will now can sacrifice 3|3, 4|4 and 5|5 towers, adding power to the Temple, while leaving the tower sacrificed alive to prevent losing the game. It will cost 500 extra cash if you do that. Only applies to 3|3, 4|4 or 5|5 towers.

Trivia

 * This is my first "Special Agent".
 * I searched (briefly) to make sure this isn't used, tell me if it does...