

Look at the top 3 cards of your deck. From among them, you may reveal up to 1 Mage follower and up to 1 Mage spell and add them to your hand. Put the rest on the bottom of your deck in any order.
: You may put a
spell from your hand into your EX area. It costs 3 less to play this turn. Activate only if there are at least 5 Mage followers in your cemetery.
QIf I look at the top 3 cards of my deck and there are no Mage spells, can I still reveal a Mage follower and add it to my hand?
AYes, you can. The same is true if there's a Mage spell but no Mage followers.
QIf I put Dimension Shift into my EX area with this follower's activated ability, then banish 10 spells from my cemetery to play it this turn, how much would it cost?
AIt would cost 4 because effects that change cost to a specific value are applied before those which add to or subtract from it.