Though its high on this list of highly ranked titles in the series, its status as a free-to-play mobile game means that theres a lot of in-app purchases if you want to collect cards
For example, Choco-Comment costs X and two red mana, so if you pay two for X, its mana value is considered four
30 Pikachu Holo Cards by 30 Illustrators
My personal favorite series are 1, 3, 11, and 12 (all of which have few rares in this collaboration ) This is purely subjective, but I have narrowed it down to a range that could potentially be used in the competitive scene and the upper ranks of Arena Mythic
Still, the full art spread makes the design stand out if nothing else
Inti, Seneschal of the Sun : Allows you to Discover 3 when it comes into play, so exile cards from the top of your library until you hit a non-land card of mana value 3 or less, then cast it without paying its cost, or put it in your hand