Bluecloak Generator

Bluecloak Generator enters play with X charge counters.
{t}Sacrifice a creature, place a number of charge counters on Bluecloak Generator equal to the sacrificed creature's toughness.
{t}Add 1 colorless mana to your mana pool for every charge counter on Bluecloak Generator, then, remove 1 charge counter from bluecloak generator.
Heritics, I tire of our usual methods, toss them into the generator, I like to hear them scream ~Tarris, Bluecloak High Inquisitor