Babamon has some more powerful cards, though, this Lucky Mushroom is the only thing that can potentially save her from a KO this turn
To me, the meta still feels more fresh and interesting than it has been in weeks, as at least these Giratina ex decks have a little variety to them - they're not just two Darkrai, two Giratina
The power level on Daretti might be high enough that it would require care to make sure the Standard format doesnt mind his addition, but if that isnt a problem, he might change the relative strengths and weaknesses of some other cards in ways that could be cool to explore
You can only use this effect of "Ebon Illusion Magician" once per turn
Your opponents will be less likely to get these advantages if River is more powerful, as she's going to deal damage equal to her power when they do so
There are 3 mythic rare (2.5%) classic comic cards that can appear in this slot