Tatjana spent a long time using Eyes of Evolution to find as much as possible about the tamed monsters in Michael's territory. She noted all the details without leaving anything. Even the most, seemingly, useless pieces of information were written down.
That was helpful as it allowed various monsters to find rather rare Elite Evolution Paths and some Superior Evolution Paths. The biggest downside of some rare and powerful Evolution Paths was that their requirements were extremely complicated. Most monsters would never have the opportunity to unlock these Evolution Paths given their environment and wild instincts.
However, the situation was a little bit different with Tatjana and Michael by their sides. Tatjana could aid the monsters and pinpoint the evolution requirements and the resources needed to stimulate their evolutions, whereas Michael could burn holes into his wallet to procure everything needed.