You dont have to keep track of exactly which card came from what pack, but I recommend recreating packs with the appropriate ratio of commons, uncommons, and rares/mythics

Facilier 39 $0.10 Elsa 40 $0.15 Elsa 41 $2.44 Elsa 42 $0.17 Flotsam 43 $0.18 Jafar 44 $0.05 Jafar 45 $0.05 Jetsam 46 $0.08 Magic Broom 47 $0.63 Maleficent 48 $0.11 Maleficent 49 $0.23 Marshmallow 50 $0.32 Mickey Mouse 51 $0.09 Olaf 52 $0.10 Pascal 53 $0.07 Rafiki 54 $0.07 Sven 55 $0.24 The Queen 56 $0.05 The Wardrobe 57 $0.08 Tinker Bell 58 $1.14 Ursula 59 $0.06 Yzma 60 $0.25 Zeus 61 $0.13 Befuddle 62 $0.06 Freeze 63 $0.13 Friends on the Other Side 64 $0.12 Reflection 65 $0.22 Magic Mirror 66 $0.11 Ursulas Cauldron 67 $0.22 White Rabbits Pocket Watch 68 $0.08 Aladdin 69 $1.41 Beast 70 $0.19 Cheshire Cat 71 $0.17 Cruella De Vil 72 $0.07 Duke of Weselton 73 $0.21 Flynn Rider 74 $0.19 Genie 75 $0.22 Genie 76 $0.10 Genie 77 $0.24 Hans 78 $0.05 Horace 79 $0.15 Iago 80 $0.06 Jasper 81 $1.70 John Silver 82 $0.08 Jumba Jookiba 83 $0.28 Kuzco 84 $0.20 Lady Tremaine 85 $0.12 Mad Hatter 86 $0.07 Megara 87 $0.26 Mickey Mouse 88 $0.11 Mickey Mouse 89 $0.22 Mother Gothel 90 $0.08 Peter Pan 91 $0.10 Tamatoa 92 $0.11 Tinker Bell 93 $0.24 Do It Again

It Depends How You Look at It Ambiguity's text was designed to make fun of the fact that both the words "play" and "counters" have more than one meaning in Magic
It costs a lot of mana but lets you storm off in the late game if you have Lessons in your graveyard along with a cost reducer like Goblin Electromancer
Probably that means you already have three mana up on your opponent
Unlike many other entries on this list, Brallin and Shabraz incentivize their controller to discard their own cards through the likes of wheel effects, as they receive benefits for doing so