On Evolve - Search your deck for a Grea's Ember, put it into your EX area, then shuffle your deck. The next Grea's Ember you play this turn costs 1 less.
While this card is on your field, if an Academic spell you control would deal damage, it deals that much plus 1 instead.
QIf I have at least 10 Academic cards in my cemetery and an evolved Grea, Mysterian Dragoness on my field, does Mysterian Missile deal 1 more damage to both the selected follower and that follower's leader?
AYes. It deals 4 damage to the selected follower and 3 damage to that follower's leader.
QIf I have at least 5 Academic cards in my cemetery and an evolved Grea, Mysterian Dragoness on my field, does Grea's Ember deal 4 damage?
AYes. Its damage first becomes 3 from its own replacement effect, then gets increased by 1 by Grea's ability.
QDoes "the next Grea's Ember you play this turn costs 1 less" take effect if I play a Grea's Ember from my EX area or another zone that isn't my hand?
AYes, it takes effect regardless of where you play the spell from.
QIf I don't find a Grea's Ember to put into my EX area with this follower's On Evolve ability, is "the next Grea's Ember you play this turn costs 1 less" still valid?
AYes, it is.