Her activated ability lets you copy one of your own instant or sorcery spells by tapping her, though you can only do it once youve cast three or more spells in a single turn
Re: the EX Dragon pack those data points are from me, and indicate that that there should be heavy packs that exist in the 17.5x range (heavies typically weigh .1 to .2 more than lights, and there were numerous lights in the 17.3x range)
Yuma Tsukumo has 4000 LP and controls "Number 39: Utopia" (2500/2000, ORU: 1) in Attack Position, as well as 1 Set card and "Reverse Breaker" (equipped to "Utopia") in his Spell & Trap Zones
Below is a list of dates for each pack
The hit rate for rare cards is generally higher, and: Packaging is more compact , with artistic box designs
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