Heart of Dragons( Dragon Magic, p. 19)
You imbue your allies with draconic power.
Knowledge (religion) 3 ranks, any draconic feat, Dragonblood subtype,
You gain access to ceremonies based on your ranks in Knowledge (religion). Each ceremony allows you to imbue up to four participants with a tiny fraction of draconic might by chanting a liturgy invoking the power of dragons and sprinkling diamond dust over them. Each ceremony requires 10 minutes of rime, and its effects last for 24 hours. Blood of Dragons (3 ranks): Each participant in the ceremony is treated as having one more draconic feat than he actually has for the purpose of determining the power of his draconic feats. This ceremony requires diamond dust worth 50 gp. Soul of Dragons (8 ranks): Each participant in the ceremony gains the benefit of one draconic feat tor which he meets the prerequisite. The benefit doesn't allow a character to meet any other requirement or prerequisite (such as qualifying tor another feat). This ceremony requires diamond dust worth 500 gp.