Although not unlimited, there are way more cards from Unlimited Edition available than for Limited Edition Alpha and Beta
The benefit to running a Metal deck can be seen in cards like Aegislash- EX and Cobalion- EX , both equipped to chisel away at certain portions of the metagame
They both reward self-mill, they synergize with each other (Dredging makes it easy to pay Escapes non-mana cost), and Escape even does Dredge one better by not making you skip a draw
In this guide for One Piece players, well introduce you to the most expensive One Piece cards out there, why theyre so valuable, and, of course, their price tags
But there's other Mono Color decks that lean heavily on colorless cards, like Teshar, Ancestor's Apostle, which is usually an Artifact deck