Mutate 3R/G UU (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own
The problem with 1st edition base is there is such little sales data for PSA 5 thru PSA 7 non-holos because it was, until recently, typically not worth it to grade those (they used to sell for $15 or lower for below PSA 8, hell two years ago PSA 9 non-holos were selling for under $20)
Mewtwo V #74 (Pokemon Japanese Go | Pokemon Cards) prices are based on the historic sales
This attack does 30 damage times the number of Energy cards you discarded to each of your opponent's Benched Pokemon
That does not mean I wont be adding these cards to my collection though, in fact its quite the opposite
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