As a note, most infinite flicker combos tend to use a combination of a handful of cards: Panharmonicon, Felidar Guardian, Ephemerate, Cloudshift, Restoration Angel, and Lumbering Battlement
Tendershoot Dryad: A great token card that quickly spirals out of control with saproling counts as it adds another each turn, including your opponents turns
Skullsnatcher Ninjutsu is a controversial but cool ability because it can make for some great combat tricks
Counterfeits are not produced with this level of care, and this difference can be detected relatively easily with a magnifying glass
You dont copy any modifications the copied token currently has when you populate, and this includes counters, auras, equipment, etc