Card not found is, besides Card not found, one of the big favorites for cheating into play through reanimation or other ways
I've been using various light sources to try to look through the top white portion of the back of the pack with no luck. The light trick he mentions is an time-honoured tradition of using light in a very specific way - along with a delicate tool - to search through the contents of a booster pack without ever breaking the plastic seal
It synergizes well with cards like **Hardened Scales**, **Doubling Season**, or **Jodah, the Unifier**-style fivecolor shells, but at four mana with no immediate board impact beyond counters, it competes with more explosive options like **Cathars Crusade** (which often generates far more counters), **Vorinclex, Monstrous Raider** (which doubles counters outright), or **Kami of Whispered Hopes** (which both ramps and doubles counters)
When a new one is applied, the previous one is removed