Is there a word that means 'causes/causing evolution?'

For example

The thunderstone is a evolution-ing or evolv-ifying substance. It causes some thunder type pokemon to evolve.

Solution 1:

The thunderstone is a mutagen and it's effects are mutagenic.

mutagen:

an agent (as a chemical or various radiations) that tends to increase the frequency or extent of mutation.

"Mutagen." Merriam-Webster.com. Merriam-Webster, n.d. Web. 11 Sept. 2016.

mutagenic:

: inducing or capable of inducing genetic mutation

"Mutagenic." Merriam-Webster.com. Merriam-Webster, n.d. Web. 11 Sept. 2016.

Solution 2:

Why not phylogenic? Oxford Dictionaries Online defines phylogenesis as

The evolutionary development and diversification of a species or group of organisms, or of a particular feature of an organism.