By regurgitating its Essence into a locus, an idigam can taint that locus and gain influence over it. Doing so requires the idigam to expend three times the locus’s rating in Essence, after which it corrupts the locus until the Essence is removed or the locus is destroyed.
An idigam that has corrupted a locus can drink from its Essence at any range. It can also reflexively attune its senses to any locus that it has corrupted and detect what is occurring there as if it were present. By transferring Essence from one corrupted locus into another it can link them together, building a web of corrupted Essence that grows more powerful, linked loci have their ratings increased by 1. Once linked, the idigam may move between one locus and the next at triple its normal speed. It can also use a network of corrupted loci to unleash certain Dread Powers with devastating effect.
Any being unfortunate enough to take Essence from a corrupted locus becomes vulnerable to the idigam’s power. The idigam can now reflexively gain a rough idea of the victim’s location as long as the corrupted Essence is in his system, and gains a +5 bonus to the dice pools of all Essence Shaping, Numina, and Dread Powers that target the victim.