During the Pokmon Black and White set, supporter cards eventually expanded to the point that almost every supporter card had a full art variant.The introduction of Pokmon EX cards in the Black and White: Next Destinies expansion saw full art cards become a much larger part of the Pokmon TCG
You might be able to make an educated guess as to whether a card you need is going to be in a specific players deck based on their commander and perceived budget, but thats far from a guarantee as they are just as likely to have forgotten to include the card youre searching for or simply havent bought a copy of it yet
In a deck named after dragons, a large mana pool provides the basis for strengthening your board and generating high attack power
but I feel like for some color combinations to compete with the raw value in Green, its becoming more and more acceptable for them to be playing cards like Mana Vault, Mana Crypt, and Grim Monolith
Say you drew another character with 2 ink or less: you could play it, exert it again using the ability and draw yet another card
Summary Commander format in Magic: The Gathering allows decks revolving around legendary creatures of choice
