its indeed spellbook is one copy per turn but not at star hall, starhall is +counter (if you suggesting citadel), +atk, and +add, just destroy it with MST or heavy storm when it has counter (3 is enough) then add exodia with this eff, 3 star hall is +3 i think, first i used citadel, but when i used it, library only can use citadel's counter once per turn even citadel has more than 3 counters after first use(maybe bug, and i've deleted my replay, i'll test it again and post the replay if i has same problem again), so i changed with tower, i'll test what your suggest tho, coz i want improvement (fastest now is 4 turn exo), so why not
However, in regards to Pokemon TCG Live, TPCi announced: Backwards compatibility plans are ongoing, and phased support for additional Expanded format cards is expected to begin later this year
If you're curious about the story of Bloomburrow and Mabel's quest to defend her family, you can check out the story right here on DailyMTG
If no Goblins have entered the battlefield this turn, no damage will be dealt
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