Spec Ops has a blood test available to determine if you have the ability to take Thelbane Logrus. If you have developed shape shifting ability talk to Spec Ops about arranging a blood test. Animus Logrus does not require a bloodline. Talk to Jonathan of Animus about access to the Animus Logrus; he can be contacted through various Animus Embassies such as the one in Quantico. Attempting to walk a Pattern is not recommended unless you know you have a parent of the appropriate bloodline. If at all possible do not attempt any Pattern or Logrus unless you are healthy, uninjured, and well rested. On almost every Pattern or Logrus, attempting to initiate with insufficient strength or incorrect bloodline analysis will result in your death.
Other powers include Abyss, Magic, Shape Shifting, SCIENCE!, and Trump as well as other less well known abilities.
A few suggested additions:
It is possible, but not always successful, for a Pattern user to negotiate a Logrus or vice versa, this requires special preparation and instruction in order to avoid side effects, insanity, or potentially death even for dual heritage persons.
It is possible for some Powers to be traversed by persons not of the correct bloodline if there is assistance from the power’s creator or guardian.
Some powers do have side effects for initiation, Thelbane Logrus is noted for causing short term insanity for its initiates of a level that requires custodial care.
Powers are jealous! It is sometimes the case that initiating to a new Power will result in the burning out or loss of previous affiliations. Some individuals have successfully resisted this, others have not. It may or may not be possible to restore or re-initate to a lost power or affiliation.
Also mentioning that it is entirely possible to not be capable of finishing a pattern (and probably a Logrus) so determining that your physical capabilities can allow you to take that Power is a necessary part for taking any Power.
I’d suggest long runs and generally working on endurance is a good starting point.
[Later comment] Having seen that you’ve split the requirements out into each power details, maybe just a line about establishing the required physical and mental capabilities to allow someone to traverse a Power might all that would be required.
Bill.