Goliath Beetle. In relationship to size.
The most powerful monocolored creature in Magic: The Gathering is generally considered to be Emrakul, the Aeons Torn.
Man is probably to answer to both.
majin buu
maxxor
a tiger
Giraffe
You cant, God created earth and always will be the most powerful person
Dart Frog
possibly plankton
The human baby.
The creature in the TCG(most powerful) is Billion Degree Dragon with 15000 power. Creatures in the OCG,however are crazily overpowered, and the most powerful creature is Heavy Death Metal,End Of The Century with a whopping 39000 power and costing less than Billion Degree - only 13 mana.(Billion Degree costs 15 mana). Hope this helps you.
they r the most adorable creature on earth!!!!!!!!!