A permanent's mana value is determined solely by the mana symbols printed in its upper right corner (unless that creature is the back face of a double-faced card, is a melded permanent, or is copying something else
I use all the right gear like a magnifying lamp or a jewelers loupe, to get my eyes as close to the cards as possible
There are only so many five-drops you can play, though, so its not an easy puzzle
The incident outside of the Target in Wisconsin was unfortunate
Apocalypse Penumbra Bobcat Penumbra Kavu Penumbra Wurm Penumbra, while unnamed, was the first mechanic to use creature tokens as the core of the mechanic
The bad thing is having to sacrifice a samurai (including itself), but there are plenty of samurai token makers and even changelings