Sekka Heretic of Ira

Sacrifice a creature: Add mana equal to the sacrificed creature's colors to your mana pool.
This mana can only be spent to cast Shinjinrui
spells and abilities.
All Shinjinruis you control have "Sacrifice this creature: add x mana of any combination to your
mana pool where x is equal to the number of
colors this creature is".