Ah yes, Dialga G Lv X. Probably the most hyped card of the Platinum set, Dialga G Lv X has the ability to cripple many decks. Statwise, 120 HP is good, x2 Weakness to :fire: is fine since :fire: is not played much, -20 Resistance to
sychic: is great with all the Dusknoirs and Gengars hanging around, and :colorless:colorless to Retreat is reasonable. Time Crystal of course is why this card is so feared; shutting down all Poke-Bodies besides SP Pokemon means that every "regular" Pokemon with a Poke-Body is affected. Remove Lost is also an ok attack, though likely you won't be using it; for :metal::metal::colorless:colorless, it'll deal a solid 80 damage, plus for each Heads you flip, you get to send an Energy on the Defending into the Lost Zone.
Modified - 9/10 (Time Crystal has the ability to stop many decks, making this a very feared card for States if your deck is reliant on Poke-Bodies)
Limited - 4/10 (Throw it in the binder to protect it imo, but if you want, he's an ok attacker if you get his Basic form also)
Unlimited - 1/10 (Bodies aren't used too much I think, since the vast majority of what we consider Bodies these days are still Powers with older cards)