Thats probably all you need to know
Two, it untaps four creatures to allow you to use them a second time to help cast a spell on an opponent's turn
The other rarest cards in Pokmon history Pikachu Illustrator Unnumbered/Promo Promo (CoroCoro Comic) Illustrator: Atsuko Nishida Value: $16,500,000 Charizard 150/150 Rare (Topsun 1995) Illustrator: Ken Sugimori Estimated value: $493,230 Charizard 4/102 Holo Rare (Base Set) Illustrator: Mitsuhiro Arita Value in PSA 10: $420,000 Blastoise 2/102 Holo Rare (Galaxy Star Prototype) Illustrator: Ken Sugimori Value: $360,000 Tsunekazu Ishihara GX Unnumbered/Promo Promo (Black Star Promo) Illustrator: Mike Martin Estimated value: $237,230 Kangaskhan Unnumbered/Promo Promo (Parent/Child Mega Battle) Illustrator: Ken Sugimori Value: Approximately $150,000 Lugia 9/111 Holo Rare (Neo Genesis) Illustrator: Hironobu Yoshida Value in PSA 10: $144,300 Trainer No
Unless you have multiple six-plus drops and/or card draw spells, having to ink two additional cards to play a single seven-drop is a risky proposition
Ive highlighted the two I thought were most powerful
The most expensive mint 2005 holographic Mew e-card I found cost $2,000