This gets weaker the further you stray from mono-green, but I can live with only spending 4 or 5 of the 6 mana my dork provided
We also cant ignore the combo with Dualcaster Mage that creates infinite storm count and magecraft triggers while bouncing your opponents boards
Our second Expertise in a row, Yahennis Expertise will be a heavily played sweeper in black-based midrange and control decks, but -3/-3 isnt necessarily a reliable way to clear the battlefield
This ability allows you to retrigger an effect of a Saga, delay a Saga trigger for a more fortuitous turn, or accelerate a Saga's progression to get value out of it on demand
Maybe Pokemon knew that would be the case and was being merciful with Mega Evolution by not making it too exciting
Since they retain the Elf creature type, they still gain bonuses from other cards like Elvish Archdruid, making them even stronger