I've a child very much in to this this year, and just opened 6 packs to find all but 4 cards were ones we already had!
I have for swaps...
2 (2), 15(2), 19(4), 25, 35(2), 45, 49(2), 54, 68, 69, 78, 79, 86, 92(2), 93, 97, 104, 110, 114, 115, 122, 125, 129, 138(2).
And needing....
1, 3, 4, 7, 8, 10, 11, 12, 13, 14, 17, 20, 21, 22, 24, 26, 27, 29, 30, 31, 32, 33, 34, 37, 39, 42, 45, 46, 47, 48, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 64, 70, 71, 73, 74, 75, 77, 78, 80, 81, 82, 83, 84, 85, 87, 89, 91, 94, 95, 97, 98, 99, 100, 101, 105, 106, 107, 108, 109, 111, 112, 113, 116, 117, 118, 119, 121, 123, 124, 126, 127, 128, 130, 131, 132, 133, 134, 135, 139, 140, 143, 144.
Please do PM me, thank you :)