And in this case, what they wanted was Chonky Pikachu back
Sources: Thick vs Thin (March 14th, 2014)- Shadowless Thick vs Thin vs Does It Matter? Debate
Converting life into mana is one of the most broken things you can do in Magic (see: Phyrexian mana), and this legendary artifact even spots you a free land drop from the top each turn
Sokka's Haiku Thriving Isle 6 Island [QMIWFqwRUK1NLBxjbbXXL] Island Appa [5qtAqNeW80BB7BCgfUsB1S] 0014_MTGTLA_JSTheme: Librarian Theme Card Card Professor Zei, Anthropologist Suspicious Bookcase Knowledge Seeker Dutiful Knowledge Seeker Wan Shi Tong, All-Knowing Giant Koi Brainstorm Octopus Form Accumulate Wisdom Lost in the Spirit World Waterbending Lesson Zuko's Exile Thriving Isle 6 Island [QMIWFqwRUK1NLBxjbbXXL] Island Appa [5qtAqNeW80BB7BCgfUsB1S] 0016_MTGTLA_JSTheme: Spirit Jumpstart Theme Card Flying Dolphin-Fish Benevolent River Spirit Knowledge Seeker Dutiful Knowledge Seeker Baboon Spirit Flexible Waterbender Giant Koi Octopus Form Dramatic Reversal It'll Quench Ya
Mew ex can be obtained from Secluded Springs pack in the Secluded Springs set
If the rules manager was allowed to make a list of cards and permanently erase them from the game's existence, this card would be high on that list