Like most Pokmon cards, the value of Dialga LV.X depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Great Encounters)
Yes, cold water works best with a very gentle clean
They may have been Constructed all-stars, but in Limited they lead to card disadvantage and typically fail to generate enough immediate impact to justify their inclusion
Not to be left in the dust by his fellow Team Satisfaction mates, Fudo Yuseis Debris Dandy (together with its Quickdraw Dandy and Junk Doppel variant) finished in the top 3 this format.
If you decide to stop your attack after the first turn, you do only 60 damage
The devs are also quick to add new sets and are very responsive. Vern Lincoln, Android User I have seen some amazing improvements over the past year or so, and I have inventoried almost my entire collection (over 5,000 cards)