One is that you have control over when to use the effect and are able to save it until you have all your mana spare to abuse and the other is that the hands only last a turn and so any sorcery speed cards they draw will be useless if used in your turn
Note that the extra 20 DMG in these figures is because of the +20 super-effective damage
If the item has a description in the item description section, that schedule will take precedence
Even if your deck has a critical mass of mana rocks, you might also get a good reduction on this spell, all while drawing new cards to cast with all those signets
Mewtwo ex and Gardevoir deck The most powerful Mewtwo deck in Pokemon at time of writing, you can build this deck with the following cards: Mewtwo ex x2 Ralts x2 Kirlia x2 Gardevoir x2 Potion x2 X Speed x2 Poke Ball x2 Red Card x1 Professor's Research x2 Sabrina x2 Giovanni x1 The goal here is to use Gardevoir's Psy Shadow to provide free energy to the active Pokemon, which should be Mewtwo ex
The addition two rarity indicators are a full borderless card, which is called an Enchanted card